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stainless steel</title> <meta name="description" content="Search results for: AISI 316L stainless steel"> <meta name="keywords" content="AISI 316L stainless steel"> <meta name="viewport" content="width=device-width, initial-scale=1, minimum-scale=1, maximum-scale=1, user-scalable=no"> <meta charset="utf-8"> <link href="https://cdn.waset.org/favicon.ico" type="image/x-icon" rel="shortcut icon"> <link href="https://cdn.waset.org/static/plugins/bootstrap-4.2.1/css/bootstrap.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/plugins/fontawesome/css/all.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/css/site.css?v=150220211555" rel="stylesheet"> </head> <body> <header> <div class="container"> <nav class="navbar navbar-expand-lg navbar-light"> <a class="navbar-brand" href="https://waset.org"> <img src="https://cdn.waset.org/static/images/wasetc.png" alt="Open Science Research Excellence" title="Open Science Research Excellence" /> </a> <button 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action="https://publications.waset.org/abstracts/search"> <div id="custom-search-input"> <div class="input-group"> <i class="fas fa-search"></i> <input type="text" class="search-query" name="q" placeholder="Author, Title, Abstract, Keywords" value="AISI 316L stainless steel"> <input type="submit" class="btn_search" value="Search"> </div> </div> </form> </div> </div> <div class="row mt-3"> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Commenced</strong> in January 2007</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Frequency:</strong> Monthly</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Edition:</strong> International</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Paper Count:</strong> 1743</div> </div> </div> </div> <h1 class="mt-3 mb-3 text-center" style="font-size:1.6rem;">Search results for: AISI 316L stainless steel</h1> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1743</span> Haemocompatibility of Surface Modified AISI 316L Austenitic Stainless Steel Tested in Artificial Plasma</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=W.%20Walke">W. Walke</a>, <a href="https://publications.waset.org/abstracts/search?q=J.%20Przondziono"> J. Przondziono</a>, <a href="https://publications.waset.org/abstracts/search?q=K.%20Nowi%C5%84ska"> K. Nowińska</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The study comprises evaluation of suitability of passive layer created on the surface of AISI 316L stainless steel for products that are intended to have contact with blood. For that purpose, prior to and after chemical passivation, samples were subject to 7 day exposure in artificial plasma at the temperature of T=37°C. Next, tests of metallic ions infiltration from the surface to the solution were performed. The tests were performed with application of spectrometer JY 2000, by Yobin – Yvon, employing Inductively Coupled Plasma Atomic Emission Spectrometry (ICP-AES). In order to characterize physical and chemical features of electrochemical processes taking place during exposure of samples to artificial plasma, tests with application of electrochemical impedance spectroscopy were suggested. The tests were performed with application of measuring unit equipped with potentiostat PGSTAT 302n with an attachment for impedance tests FRA2. Measurements were made in the environment simulating human blood at the temperature of T=37°C. Performed tests proved that application of chemical passivation process for AISI 316L stainless steel used for production of goods intended to have contact with blood is well-grounded and useful in order to improve safety of their usage. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=AISI%20316L%20stainless%20steel" title="AISI 316L stainless steel">AISI 316L stainless steel</a>, <a href="https://publications.waset.org/abstracts/search?q=chemical%20passivation" title=" chemical passivation"> chemical passivation</a>, <a href="https://publications.waset.org/abstracts/search?q=artificial%20plasma" title=" artificial plasma"> artificial plasma</a>, <a href="https://publications.waset.org/abstracts/search?q=ions%20infiltration" title=" ions infiltration"> ions infiltration</a>, <a href="https://publications.waset.org/abstracts/search?q=EIS" title=" EIS"> EIS</a> </p> <a href="https://publications.waset.org/abstracts/8994/haemocompatibility-of-surface-modified-aisi-316l-austenitic-stainless-steel-tested-in-artificial-plasma" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/8994.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">266</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1742</span> Impact Tensile Mechanical Properties of 316L Stainless Steel at Different Strain Rates</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Jiawei%20Chen">Jiawei Chen</a>, <a href="https://publications.waset.org/abstracts/search?q=Jia%20Qu"> Jia Qu</a>, <a href="https://publications.waset.org/abstracts/search?q=Dianwei%20Ju"> Dianwei Ju</a> </p> <p class="card-text"><strong>Abstract:</strong></p> 316L stainless steel has good mechanical and technological properties, has been widely used in shipbuilding and aerospace manufacturing. In order to understand the effect of strain rate on the yield limit of 316L stainless steel and the constitutive relationship of the materials at different strain rates, this paper used the INSTRON-4505 electronic universal testing machine to study the mechanical properties of the tensile specimen under quasi-static conditions. Meanwhile, the Zwick-Roell RKP450 intelligent oscillometric impact tester was used to test the tensile specimens at different strain rates. Through the above two kinds of experimental researches, the relationship between the true stress-strain and the engineering stress-strain at different strain rates is obtained. The result shows that the tensile yield point of 316L stainless steel increases with the increase of strain rate, and the real stress-strain curve of the 316L stainless steel has a better normalization than that of the engineering stress-strain curve. The real stress-strain curves can be used in the practical engineering of impact stretch to improve its safety. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=impact%20stretch" title="impact stretch">impact stretch</a>, <a href="https://publications.waset.org/abstracts/search?q=316L%20stainless%20steel" title=" 316L stainless steel"> 316L stainless steel</a>, <a href="https://publications.waset.org/abstracts/search?q=strain%20rate" title=" strain rate"> strain rate</a>, <a href="https://publications.waset.org/abstracts/search?q=real%20stress-strain" title=" real stress-strain"> real stress-strain</a>, <a href="https://publications.waset.org/abstracts/search?q=normalization" title=" normalization"> normalization</a> </p> <a href="https://publications.waset.org/abstracts/88153/impact-tensile-mechanical-properties-of-316l-stainless-steel-at-different-strain-rates" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/88153.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">280</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1741</span> Investigation of Specific Wear Rate of Austenitic and Duplex Stainless Steel Alloys in High Temperatures</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Dler%20Abdullah%20Ahmed">Dler Abdullah Ahmed</a>, <a href="https://publications.waset.org/abstracts/search?q=Zozan%20Ahmed%20Mohammed"> Zozan Ahmed Mohammed</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Wear as an unavoidable phenomenon in stainless steel contact sliding parts is investigated In this work. Two grades of austenitic AISI 304, and S31254, as well as duplexes of S32205, and AISI 2507, were chosen to compare their wear behavior in temperatures ranging from room temperature to 550°C. The experimental results show that AISI 304 austenitic and AISI 2205 duplex stainless steel had lower wear resistance compared with S31254 and AISI 2507 in various temperatures. When the temperature rose to 140°C, and the wear rate of all grades increased, AISI 304 had the highest at 7.028x10-4 mm3/Nm, and AISI 2507 had the lowest at 4.9033 x 10-4 mm3/Nm. At 300°C, the oxides began to form on the worn surfaces, causing the wear rate to slow. As a result, when temperatures exceeded 300°C, the specific wear rate decreased significantly in all specimens. According to the XRD patterns, the main types of oxides formed on worn surfaces were magnetite, hematite, and chromite. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=wear" title="wear">wear</a>, <a href="https://publications.waset.org/abstracts/search?q=stainless%20steel" title=" stainless steel"> stainless steel</a>, <a href="https://publications.waset.org/abstracts/search?q=temperature" title=" temperature"> temperature</a>, <a href="https://publications.waset.org/abstracts/search?q=groove" title=" groove"> groove</a>, <a href="https://publications.waset.org/abstracts/search?q=oxide" title=" oxide"> oxide</a> </p> <a href="https://publications.waset.org/abstracts/173377/investigation-of-specific-wear-rate-of-austenitic-and-duplex-stainless-steel-alloys-in-high-temperatures" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/173377.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">75</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1740</span> Investigation of Specific Wear Rate of Austenitic and Duplex Stainless Steel Alloys in High Temperatures</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Dler%20Abdullah%20Ahmed">Dler Abdullah Ahmed</a>, <a href="https://publications.waset.org/abstracts/search?q=Zozan%20Ahmed%20Mohammed"> Zozan Ahmed Mohammed</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Wear as an unavoidable phenomenon in stainless steel contact sliding parts is investigated In this work. Two grades of austenitic AISI 304, and S31254, as well as duplexes of S32205, and AISI 2507, were chosen to compare their wear behavior in temperatures ranging from room temperature to 550°C. The experimental results show that AISI 304 austenitic and AISI 2205 duplex stainless steel had lower wear resistance compared with S31254 and AISI 2507 in various temperatures. When the temperature rose to 140°C, and the wear rate of all grades increased, AISI 304 had the highest at 7.028x10-4 mm3/Nm, and AISI 2507 had the lowest at 4.9033 x 10-4 mm3/Nm. At 300°C, the oxides began to form on the worn surfaces, causing the wear rate to slow. As a result, when temperatures exceeded 300°C, the specific wear rate decreased significantly in all specimens. According to the XRD patterns, the main types of oxides formed on worn surfaces were magnetite, hematite, and chromite. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=wear" title="wear">wear</a>, <a href="https://publications.waset.org/abstracts/search?q=stainless%20steel" title=" stainless steel"> stainless steel</a>, <a href="https://publications.waset.org/abstracts/search?q=temperature" title=" temperature"> temperature</a>, <a href="https://publications.waset.org/abstracts/search?q=groove" title=" groove"> groove</a>, <a href="https://publications.waset.org/abstracts/search?q=oxide" title=" oxide"> oxide</a> </p> <a href="https://publications.waset.org/abstracts/179769/investigation-of-specific-wear-rate-of-austenitic-and-duplex-stainless-steel-alloys-in-high-temperatures" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/179769.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">71</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1739</span> Comparison of Johnson-Cook and Barlat Material Model for 316L Stainless Steel</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Yi%C4%9Fit%20G%C3%BCrler">Yiğit Gürler</a>, <a href="https://publications.waset.org/abstracts/search?q=%C4%B0brahim%20%C5%9Eim%C5%9Fek"> İbrahim Şimşek</a>, <a href="https://publications.waset.org/abstracts/search?q=M%C3%BCge%20Sava%C5%9Ftaer"> Müge Savaştaer</a>, <a href="https://publications.waset.org/abstracts/search?q=Ayberk%20Karaku%C5%9F"> Ayberk Karakuş</a>, <a href="https://publications.waset.org/abstracts/search?q=Alper%20Ta%C5%9Fdemirci"> Alper Taşdemirci</a> </p> <p class="card-text"><strong>Abstract:</strong></p> 316L steel is frequently used in the industry due to its easy formability and accessibility in sheet metal forming processes. Numerical and experimental studies are frequently encountered in the literature to examine the mechanical behavior of 316L stainless steel during the forming process. 316L stainless steel is the most common material used in the production of plate heat exchangers and plate heat exchangers are produced by plastic deformation of the stainless steel. The motivation in this study is to determine the appropriate material model during the simulation of the sheet metal forming process. For this reason, two different material models were examined and Ls-Dyna material cards were created using material test data. These are MAT133_BARLAT_YLD2000 and MAT093_SIMPLIFIED_JOHNSON_COOK. In order to compare results of the tensile test & hydraulic bulge test performed both numerically and experimentally. The obtained results were evaluated comparatively and the most suitable material model was selected for the forming simulation. In future studies, this material model will be used in the numerical modeling of the sheet metal forming process. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=316L" title="316L">316L</a>, <a href="https://publications.waset.org/abstracts/search?q=mechanical%20characterization" title=" mechanical characterization"> mechanical characterization</a>, <a href="https://publications.waset.org/abstracts/search?q=metal%20forming" title=" metal forming"> metal forming</a>, <a href="https://publications.waset.org/abstracts/search?q=Ls-Dyna" title=" Ls-Dyna"> Ls-Dyna</a> </p> <a href="https://publications.waset.org/abstracts/142507/comparison-of-johnson-cook-and-barlat-material-model-for-316l-stainless-steel" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/142507.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">334</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1738</span> The Influence of C Element on the Phase Transformation in Weldment of Complex Stainless Steels 2507/316/316L</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Lin%20Dong-Yih">Lin Dong-Yih</a>, <a href="https://publications.waset.org/abstracts/search?q=Yang%20S.%20M."> Yang S. M.</a>, <a href="https://publications.waset.org/abstracts/search?q=Huang%20B.%20W."> Huang B. W.</a>, <a href="https://publications.waset.org/abstracts/search?q=Lian%20J.%20A."> Lian J. A.</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Super duplex stainless steel has excellent mechanical properties and corrosion resistance. It becomes important structural material as its application has been extended to the fields such as renewable energy and the chemical industry because of its excellent properties. As examples are offshore wind power, solar cell machinery, and pipes in the chemical industry. The mechanical properties and corrosion resistance of super duplex stainless steel can be eliminated by welding due to the precipitation of the hard and brittle σ phase, which is rich of chromium, and molybdenum elements. This paper studies the influence of carbon element on the phase transformation of -ferrite and σ phase in 2507 super duplex stainless steel. The 2507 will be under argon gas protection welded with 316 and 316L extra low carbon stainless steel separately. The microstructural phases of stainless steels before and after welding, in fusion, heat affected zones, and base material will be studied via X-ray, OM, SEM, EPMA i.e. their quantity, size, distribution, and morphology. The influences of diffusion by carbon element will be compared according to the microstructures, hardness, and corrosion tests. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=complex%20stainless%20steel" title="complex stainless steel">complex stainless steel</a>, <a href="https://publications.waset.org/abstracts/search?q=welding" title=" welding"> welding</a>, <a href="https://publications.waset.org/abstracts/search?q=phase%20formation" title=" phase formation"> phase formation</a>, <a href="https://publications.waset.org/abstracts/search?q=carbon%20element" title=" carbon element"> carbon element</a>, <a href="https://publications.waset.org/abstracts/search?q=sigma%20phase" title=" sigma phase"> sigma phase</a>, <a href="https://publications.waset.org/abstracts/search?q=delta%20ferrite" title=" delta ferrite"> delta ferrite</a> </p> <a href="https://publications.waset.org/abstracts/154162/the-influence-of-c-element-on-the-phase-transformation-in-weldment-of-complex-stainless-steels-2507316316l" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/154162.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">99</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1737</span> Characterising the Effects of Heat Treatment on 3CR12 and AISI 316 Stainless Steels</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Esther%20T.%20Akinlabi">Esther T. Akinlabi</a>, <a href="https://publications.waset.org/abstracts/search?q=Stephen%20A.%20Akinlabi"> Stephen A. Akinlabi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper reports on the effects of heat treatment on 3CR12 and AISI 316 stainless steel grades. Heat treatment was conducted on the steel grades and cooled using two different media; air and water in order to study the effect of each medium on the evolving properties of the samples. The heat treated samples were characterized through the evolving microstructure and hardness. It was found that there was a significant grain size reduction in both the heat treated stainless steel specimens compared to the parent materials. The finer grain sizes were achieved as a result of impediment to growth of one phase by the other. The Vickers micro-hardness values of the heat treated samples were higher compared to the parent materials due to the fact that each of the steel grades had a proportion of martensitic structures in their microstructures. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=austenite" title="austenite">austenite</a>, <a href="https://publications.waset.org/abstracts/search?q=ferrite" title=" ferrite"> ferrite</a>, <a href="https://publications.waset.org/abstracts/search?q=grain%20size" title=" grain size"> grain size</a>, <a href="https://publications.waset.org/abstracts/search?q=hardness" title=" hardness"> hardness</a>, <a href="https://publications.waset.org/abstracts/search?q=martensite" title=" martensite"> martensite</a>, <a href="https://publications.waset.org/abstracts/search?q=microstructure%20and%20stainless%20steel" title=" microstructure and stainless steel"> microstructure and stainless steel</a> </p> <a href="https://publications.waset.org/abstracts/5781/characterising-the-effects-of-heat-treatment-on-3cr12-and-aisi-316-stainless-steels" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/5781.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">269</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1736</span> Static Strain Aging in Ferritic and Austenitic Stainless Steels</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Songul%20Kurucay">Songul Kurucay</a>, <a href="https://publications.waset.org/abstracts/search?q=Mustafa%20Acarer"> Mustafa Acarer</a>, <a href="https://publications.waset.org/abstracts/search?q=Harun%20Sepet"> Harun Sepet</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Static strain aging occurs when metallic materials are subjected to deformation and then heat treated at low temperatures such as 150-200oC. Static strain aging occurs in BCC metals and results and increasing in yield and tensile strength and decreasing ductility due to carbon and/or nitrogen atoms locking dislocations. The locked dislocations increase yield and tensile strength. In this study, static strain aging behaviors of ferritic and austenitic stainless steel were investigated. Ferritic stainless steel was prestained at %5, %10 and %15 and then aged at 150oC and 200oC for 30 minutes. Austenitic stainless steel was also prestained at %20 and %30 and then heat treated at 200, 400 and 600oC for 30 minutes. After the heat treatment, the tensile test was performed to determine the effect of prestain and heat treatment on the steels. Hardness measurements and detailed microstructure characterization were also done. While AISI 430 ferritic stainless steel sample which was prestained at 15% and aged at 200oC, showed the highest increasing in the yield strength, AISI 304 austenitic stainless steel which was prestained at 30% and aged at 600oC, has the highest yield strength. Microstructure photographs also support the mechanical test results. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=austenitic%20stainless%20steel" title="austenitic stainless steel">austenitic stainless steel</a>, <a href="https://publications.waset.org/abstracts/search?q=ferritic%20stainless%20steel" title=" ferritic stainless steel"> ferritic stainless steel</a>, <a href="https://publications.waset.org/abstracts/search?q=static%20strain%20aging" title=" static strain aging"> static strain aging</a>, <a href="https://publications.waset.org/abstracts/search?q=tensile%20strength" title=" tensile strength"> tensile strength</a> </p> <a href="https://publications.waset.org/abstracts/37051/static-strain-aging-in-ferritic-and-austenitic-stainless-steels" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/37051.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">440</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1735</span> The Effect of Molybdate on Corrosion Behaviour of AISI 316Ti Stainless Steel in Chloride Environment </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Viera%20Zatkal%C3%ADkov%C3%A1">Viera Zatkalíková</a>, <a href="https://publications.waset.org/abstracts/search?q=Lenka%20Markovi%C4%8Dov%C3%A1"> Lenka Markovičová</a>, <a href="https://publications.waset.org/abstracts/search?q=Aneta%20Tor-Swiatek"> Aneta Tor-Swiatek</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The effect of molybdate addition to chloride environment on resistance of AISI 316Ti stainless steel to pitting corrosion was studied. Potentiodynamic polarisation tests were performed in 1 M and 0.1 M chloride acidified solutions with various additions of sodium molybdate at room temperature. The presented results compare the effect of molybdate anions on quality of passive film (expressed by the pitting potential) in both chloride solutions. The pitting potential increases with the increase inhibitor concentration. The inhibitive effect of molybdate ions is stronger in chloride solution of lower aggressiveness (0.1M). <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=AISI%20316Ti%20steel" title="AISI 316Ti steel">AISI 316Ti steel</a>, <a href="https://publications.waset.org/abstracts/search?q=molybdate%20inhibitor" title=" molybdate inhibitor"> molybdate inhibitor</a>, <a href="https://publications.waset.org/abstracts/search?q=pitting%20corrosion" title=" pitting corrosion"> pitting corrosion</a>, <a href="https://publications.waset.org/abstracts/search?q=pitting%20potential" title=" pitting potential"> pitting potential</a>, <a href="https://publications.waset.org/abstracts/search?q=potentiodynamic%20polarisation" title=" potentiodynamic polarisation "> potentiodynamic polarisation </a> </p> <a href="https://publications.waset.org/abstracts/31312/the-effect-of-molybdate-on-corrosion-behaviour-of-aisi-316ti-stainless-steel-in-chloride-environment" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/31312.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">390</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1734</span> Effect of Nitriding and Shot Peening on Corrosion Behavior and Surface Properties of Austenite Stainless Steel 316L</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Khiaira%20S.%20Hassan">Khiaira S. Hassan</a>, <a href="https://publications.waset.org/abstracts/search?q=Abbas%20S.%20Alwan"> Abbas S. Alwan</a>, <a href="https://publications.waset.org/abstracts/search?q=Muna%20K.%20Abbass"> Muna K. Abbass</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This research aims to study the effect of the liquid nitriding and shot peening on the hardness, surface roughness, residual stress, microstructure and corrosion behavior of austenite stainless steel 316 L. Chemical surface heat treatment by liquid nitriding process was carried out at 500 °C for 1 h and followed by shot peening with using ball steel diameter of 1.25 mm in different exposure time of 10 and 20 min. Electrochemical corrosion test was applied in sea water (3.5% NaCl solution) by using potentostat instrument. The results showed that the nitride layer consists of a compound layer (white layer) and diffusion zone immediately below the alloy layer. It has been found that the mechanical treatment (shot peening) has led to the formation of compressive residual stresses in layer surface that increased the hardness of stainless steel surface. All surface treatment (nitriding and shot peening) processes have led to the formation of carbide of CrN in hard surface layer. It was shown that both processes caused an increase in surface hardness and roughness which increases with shot peening time. Also, the corrosion results showed that the liquid nitriding and shot peening processes increase the corrosion rate to values more than that of not treated stainless steel. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=stainless%20steel%20316L" title="stainless steel 316L">stainless steel 316L</a>, <a href="https://publications.waset.org/abstracts/search?q=shot%20peening" title=" shot peening"> shot peening</a>, <a href="https://publications.waset.org/abstracts/search?q=nitriding" title=" nitriding"> nitriding</a>, <a href="https://publications.waset.org/abstracts/search?q=corrosion" title=" corrosion"> corrosion</a>, <a href="https://publications.waset.org/abstracts/search?q=hardness" title=" hardness"> hardness</a> </p> <a href="https://publications.waset.org/abstracts/68488/effect-of-nitriding-and-shot-peening-on-corrosion-behavior-and-surface-properties-of-austenite-stainless-steel-316l" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/68488.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">468</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1733</span> Effect of Demineralized Water Purity on the Corrosion Behavior of Steel Alloys</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=A.%20M.%20El-Aziz">A. M. El-Aziz</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20Elsehamy"> M. Elsehamy</a>, <a href="https://publications.waset.org/abstracts/search?q=H.%20Hussein"> H. Hussein</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Steel or stainless steel have reasonable corrosion behavior in water, their corrosion resistance is significantly dependent on the water purity. It was not expected that demineralized water has an aggressive effect on steel alloys, in this study, the effect of water with different purity on steel X52 and stainless steel 316L was investigated. Weight loss and electrochemical measurements were employed to measure the corrosion behavior. Samples were microscopically investigated after test. It was observed that the higher the water purity the more reactive it is. Comparative analysis of the potentiodynamic curves for different water purity showed the aggressiveness of the demineralised water (conductivity of 0.05 microSiemens per cm) over the distilled water. Whereas, the corrosion rates of stainless steel 858 and 623 nm/y for demi and distilled water respectively. On the other hand, the corrosion rates of carbon steel x52 were estimated about 4.8 and 3.6 µm/y for demi and distilled water, respectively. Open circuit potential (OCP) recorded more positive potentials in case of stainless steel than carbon steel in different water purities. Generally, stainless steel illustrated high pitting resistance than carbon steel alloy, the surface film was investigated by scanning electron microscopy (SEM) and analyzed by energy dispersive X-ray spectroscopy (EDX). This behavior was explained based on that demi and distilled water might be considered as ‘hungry water’ in which it wants to be in equilibrium and will pull ions out of the surrounding metals trying to satisfy its ‘hunger’. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=corrosion" title="corrosion">corrosion</a>, <a href="https://publications.waset.org/abstracts/search?q=demineralized%20water" title=" demineralized water"> demineralized water</a>, <a href="https://publications.waset.org/abstracts/search?q=distilled%20water" title=" distilled water"> distilled water</a>, <a href="https://publications.waset.org/abstracts/search?q=steel%20alloys" title=" steel alloys"> steel alloys</a> </p> <a href="https://publications.waset.org/abstracts/50480/effect-of-demineralized-water-purity-on-the-corrosion-behavior-of-steel-alloys" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/50480.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">813</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1732</span> Hybrid Stainless Steel Girder for Bridge Construction</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Tetsuya%20Yabuki">Tetsuya Yabuki</a>, <a href="https://publications.waset.org/abstracts/search?q=Yasunori%20Arizumi"> Yasunori Arizumi</a>, <a href="https://publications.waset.org/abstracts/search?q=Tetsuhiro%20Shimozato"> Tetsuhiro Shimozato</a>, <a href="https://publications.waset.org/abstracts/search?q=Samy%20Guezouli"> Samy Guezouli</a>, <a href="https://publications.waset.org/abstracts/search?q=Hiroaki%20Matsusita"> Hiroaki Matsusita</a>, <a href="https://publications.waset.org/abstracts/search?q=Masayuki%20Tai"> Masayuki Tai</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The main object of this paper is to present the research results of the development of a hybrid stainless steel girder system for bridge construction undertaken at University of Ryukyu. In order to prevent the corrosion damage and reduce the fabrication costs, a hybrid stainless steel girder in bridge construction is developed, the stainless steel girder of which is stiffened and braced by structural carbon steel materials. It is verified analytically and experimentally that the ultimate strength of the hybrid stainless steel girder is equal to or greater than that of conventional carbon steel girder. The benefit of the life-cycle cost of the hybrid stainless steel girder is also shown. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=smart%20structure" title="smart structure">smart structure</a>, <a href="https://publications.waset.org/abstracts/search?q=hybrid%20stainless%20steel%20members" title=" hybrid stainless steel members"> hybrid stainless steel members</a>, <a href="https://publications.waset.org/abstracts/search?q=ultimate%20strength" title=" ultimate strength"> ultimate strength</a>, <a href="https://publications.waset.org/abstracts/search?q=steel%20bridge" title=" steel bridge"> steel bridge</a>, <a href="https://publications.waset.org/abstracts/search?q=corrosion%20prevention" title=" corrosion prevention"> corrosion prevention</a> </p> <a href="https://publications.waset.org/abstracts/51375/hybrid-stainless-steel-girder-for-bridge-construction" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/51375.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">378</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1731</span> Characterization of Nano Coefficient of Friction through Lfm of Superhydrophobic/Oleophobic Coatings Applied on 316l Ss</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Hamza%20Shams">Hamza Shams</a>, <a href="https://publications.waset.org/abstracts/search?q=Sajid%20Saleem"> Sajid Saleem</a>, <a href="https://publications.waset.org/abstracts/search?q=Bilal%20A.%20Siddiqui"> Bilal A. Siddiqui</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper investigates the coefficient of friction at nano-levels of commercially available superhydrophobic/oleophobic coatings when applied over 316L SS. 316L Stainless Steel or Marine Stainless Steel has been selected for its widespread uses in structures, marine and biomedical applications. The coatings were investigated in harsh sand-storm and sea water environments. The particle size of the sand during the procedure was carefully selected to simulate sand-storm conditions. Sand speed during the procedure was carefully modulated to simulate actual wind speed during a sand-storm. Sample preparation was carried out using prescribed methodology by the coating manufacturer. The coating’s adhesion and thickness was verified before and after the experiment with the use of Scanning Electron Microscopy (SEM). The value for nano-level coefficient of friction has been determined using Lateral Force Microscopy (LFM). The analysis has been used to formulate a value of friction coefficient which in turn is associative of the amount of wear the coating can bear before the exposure of the base substrate to the harsh environment. The analysis aims to validate the coefficient of friction value as marketed by the coating manufacturers and more importantly test the coating in real-life applications to justify its use. It is expected that the coating would resist exposure to the harsh environment for a considerable amount of time. Further, it would prevent the sample from getting corroded in the process. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=316L%20SS" title="316L SS">316L SS</a>, <a href="https://publications.waset.org/abstracts/search?q=scanning%20electron%20microscopy" title=" scanning electron microscopy"> scanning electron microscopy</a>, <a href="https://publications.waset.org/abstracts/search?q=lateral%20force%20microscopy" title=" lateral force microscopy"> lateral force microscopy</a>, <a href="https://publications.waset.org/abstracts/search?q=marine%20stainless%20steel" title=" marine stainless steel"> marine stainless steel</a>, <a href="https://publications.waset.org/abstracts/search?q=oleophobic%20coating" title=" oleophobic coating"> oleophobic coating</a>, <a href="https://publications.waset.org/abstracts/search?q=superhydrophobic%20coating" title=" superhydrophobic coating"> superhydrophobic coating</a> </p> <a href="https://publications.waset.org/abstracts/35412/characterization-of-nano-coefficient-of-friction-through-lfm-of-superhydrophobicoleophobic-coatings-applied-on-316l-ss" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/35412.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">486</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1730</span> Effect of Ti, Nb, and Zr Additives on Biocompatibility of Injection Molded 316L Stainless Steel for Biomedical Applications</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Busra%20Gundede">Busra Gundede</a>, <a href="https://publications.waset.org/abstracts/search?q=Ozal%20Mutlu"> Ozal Mutlu</a>, <a href="https://publications.waset.org/abstracts/search?q=Nagihan%20Gulsoy"> Nagihan Gulsoy</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Background: Over the years, material research has led to the development of numerous metals and alloys for using in biomedical applications. One of the major tasks of biomaterial research is the functionalization of the material surface to improve the biocompatibility according to a specific application. 316L and 316L alloys are excellent for various bio-applications. This research was investigated the effect of titanium (Ti), niobium (Nb), and zirconium (Zr) additives on injection molded austenitic grade 316L stainless steels in vitro biocompatibility. For this purpose, cytotoxic tests were performed to evaluate the potential biocompatibility of the specimens. Materials and Methods: 3T3 fibroblast were cultivated in DMEM supplemented with 10% fetal bovine serum and %1 penicillin-streptomycin at 37°C with 5% CO2 and 95%humidity. Trypsin/EDTA solution was used to remove cells from the culture flask. Cells were reseeded at a density of 1×105cell in 25T flasks. The medium change took place every 3 days. The trypan blue assay was used to determine cell viability. Cell viability is calculated as the number of viable cells divided by the total number of cells within the grids on the cell counter machine counted the number of blue staining cells and the number of total cells. Cell viability should be at least 95% for healthy log-phase cultures. MTT assay was assessed for 96-hours. Cells were cultivated in 6-well flask within 5 ml DMEM and incubated as same conditions. 0,5mg/ml MTT was added for 4-hours and then acid-isoprohanol was added for solubilize to formazan crystals. Cell morphology after 96h was investigated by SEM. The medium was removed, samples were washed with 0.15 M PBS buffer and fixed for 12h at 4- 8°C with %2,5 gluteraldehyte. Samples were treated with 1% osmium tetroxide. Samples were then dehydrated and dried, mounted on appropriate stubs with colloidal silver and sputter-coated with gold. Images were collected using a scanning electron microscope. ROS assay is a cell viability test for in vitro studies. Cells were grown for 96h, ROS solution added on cells in 6 well plate flask and incubated for 1h. Fluorescence signal indicates ROS generation by cells. Results: Trypan Blue exclusion assay results were 96%, 92%, 95%, 90%, 91% for negative control group, 316L, 316L-Ti, 316L-Nb and 316L-Zr, respectively. Results were found nearly similar to each other when compared with control group. Cell viability from MTT analysis was found to be 100%, 108%, 103%, 107%, and 105% for the control group, 316L, 316L-Ti, 316L-Nb and 316L-Zr, respectively. Fluorescence microscopy analysis indicated that all test groups were same as the control group in ROS assay. SEM images demonstrated that the attachment of 3T3 cells on biomaterials. Conclusion: We, therefore, concluded that Ti, Nb and Zr additives improved physical properties of 316L stainless. In our in vitro experiments showed that these new additives did not modify the cytocompatibility of stainless steel and these additives on 316L might be useful for biomedical applications. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=316L%20stainles%20steel" title="316L stainles steel">316L stainles steel</a>, <a href="https://publications.waset.org/abstracts/search?q=biocompatibility" title=" biocompatibility"> biocompatibility</a>, <a href="https://publications.waset.org/abstracts/search?q=cell%20culture" title=" cell culture"> cell culture</a>, <a href="https://publications.waset.org/abstracts/search?q=Ti" title=" Ti"> Ti</a>, <a href="https://publications.waset.org/abstracts/search?q=Nb" title=" Nb"> Nb</a>, <a href="https://publications.waset.org/abstracts/search?q=Zr" title=" Zr"> Zr</a> </p> <a href="https://publications.waset.org/abstracts/23134/effect-of-ti-nb-and-zr-additives-on-biocompatibility-of-injection-molded-316l-stainless-steel-for-biomedical-applications" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/23134.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">513</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1729</span> Nitriding of Super-Ferritic Stainless Steel by Plasma Immersion Ion Implantation in Radio Frequency and Microwave Plasma System</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=H.%20Bhuyan">H. Bhuyan</a>, <a href="https://publications.waset.org/abstracts/search?q=S.%20M%C3%A4ndl"> S. Mändl</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20Favre"> M. Favre</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20Cisternas"> M. Cisternas</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20Henriquez"> A. Henriquez</a>, <a href="https://publications.waset.org/abstracts/search?q=E.%20Wyndham"> E. Wyndham</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20Walczak"> M. Walczak</a>, <a href="https://publications.waset.org/abstracts/search?q=D.%20Manova"> D. Manova</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The 470 Li-24 Cr and 460Li-21 Cr are two alloys belonging to the next generation of super-ferritic nickel free stainless steel grades, containing titanium (Ti), niobium (Nb) and small percentage of carbon (C) and nitrogen (N). The addition of Ti and Nb improves in general the corrosion resistance while the low interstitial content of C and N assures finer precipitates and greater ductility compared to conventional ferritic grades. These grades are considered an economic alternative to AISI 316L and 304 due to comparable or superior corrosion. However, since 316L and 304 can be nitrided to improve the mechanical surface properties like hardness and wear; it is hypothesize that the tribological properties of these super-ferritic stainless steels grades can also be improved by plasma nitriding. Thus two sets of plasma immersion ion implantation experiments have been carried out, one with a high pressure capacitively coupled radio frequency plasma at PUC Chile and the other using a low pressure microwave plasma at IOM Leipzig, in order to explore further improvements in the mechanical properties of 470 Li-24 Cr and 460Li-21 Cr steel. Nitrided and unnitrided substrates have been subsequently investigated using different surface characterization techniques including secondary ion mass spectroscopy, scanning electron microscopy, energy dispersive x-ray analysis, Vickers hardness, wear resistance, as well as corrosion test. In most of the characterizations no major differences have been observed for nitrided 470 Li-24 Cr and 460Li-21 Cr. Due to the ion bombardment, an increase in the surface roughness is observed for higher treatment temperature, independent of the steel types. The formation of chromium nitride compound takes place only at a treatment temperature around 4000C-4500C, or above. However, corrosion properties deteriorate after treatment at higher temperatures. The physical characterization results show up to 25 at.% of nitrogen for a diffusion zone of 4-6 m, and a 4-5 times increase in hardness for different experimental conditions. The samples implanted with temperature higher than 400 °C presented a wear resistance around two orders of magnitude higher than the untreated substrates. The hardness is apparently affected by the different roughness of the samples and their different profile of nitrogen. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=ion%20implantation" title="ion implantation">ion implantation</a>, <a href="https://publications.waset.org/abstracts/search?q=plasma" title=" plasma"> plasma</a>, <a href="https://publications.waset.org/abstracts/search?q=RF%20and%20microwave%20plasma" title=" RF and microwave plasma"> RF and microwave plasma</a>, <a href="https://publications.waset.org/abstracts/search?q=stainless%20steel" title=" stainless steel "> stainless steel </a> </p> <a href="https://publications.waset.org/abstracts/18559/nitriding-of-super-ferritic-stainless-steel-by-plasma-immersion-ion-implantation-in-radio-frequency-and-microwave-plasma-system" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/18559.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">464</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1728</span> Corrosion Protective Coatings in Machines Design</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Cristina%20Diaz">Cristina Diaz</a>, <a href="https://publications.waset.org/abstracts/search?q=Lucia%20Perez"> Lucia Perez</a>, <a href="https://publications.waset.org/abstracts/search?q=Simone%20Visigalli"> Simone Visigalli</a>, <a href="https://publications.waset.org/abstracts/search?q=Giuseppe%20Di%20Florio"> Giuseppe Di Florio</a>, <a href="https://publications.waset.org/abstracts/search?q=Gonzalo%20Fuentes"> Gonzalo Fuentes</a>, <a href="https://publications.waset.org/abstracts/search?q=Roberto%20Canziani"> Roberto Canziani</a>, <a href="https://publications.waset.org/abstracts/search?q=Paolo%20Gronchi"> Paolo Gronchi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> During the last 50 years, the selection of materials is one of the main decisions in machine design for different industrial applications. It is due to numerous physical, chemical, mechanical and technological factors to consider in it. Corrosion effects are related with all of these factors and impact in the life cycle, machine incidences and the costs for the life of the machine. Corrosion affects the deterioration or destruction of metals due to the reaction with the environment, generally wet. In food industry, dewatering industry, concrete industry, paper industry, etc. corrosion is an unsolved problem and it might introduce some alterations of some characteristics in the final product. Nowadays, depending on the selected metal, its surface and its environment of work, corrosion prevention might be a change of metal, use a coating, cathodic protection, use of corrosion inhibitors, etc. In the vast majority of the situations, use of a corrosion resistant material or in its defect, a corrosion protection coating is the solution. Stainless steels are widely used in machine design, because of their strength, easily cleaned capacity, corrosion resistance and appearance. Typical used are AISI 304 and AISI 316. However, their benefits don’t fit every application, and some coatings are required against corrosion such as some paintings, galvanizing, chrome plating, SiO₂, TiO₂ or ZrO₂ coatings, etc. In this work, some coatings based in a bilayer made of Titanium-Tantalum, Titanium-Niobium, Titanium-Hafnium or Titanium-Zirconium, have been developed used magnetron sputtering configuration by PVD (Physical Vapor Deposition) technology, for trying to reduce corrosion effects on AISI 304, AISI 316 and comparing it with Titanium alloy substrates. Ti alloy display exceptional corrosion resistance to chlorides, sour and oxidising acidic media and seawater. In this study, Ti alloy (99%) has been included for comparison with coated AISI 304 and AISI 316 stainless steel. Corrosion tests were conducted by a Gamry Instrument under ASTM G5-94 standard, using different electrolytes such as tomato salsa, wine, olive oil, wet compost, a mix of sand and concrete with water and NaCl for testing corrosion in different industrial environments. In general, in all tested environments, the results showed an improvement of corrosion resistance of all coated AISI 304 and AISI 316 stainless steel substrates when they were compared to uncoated stainless steel substrates. After that, comparing these results with corrosion studies on uncoated Ti alloy substrate, it was observed that in some cases, coated stainless steel substrates, reached similar current density that uncoated Ti alloy. Moreover, Titanium-Zirconium and Titanium-Tantalum coatings showed for all substrates in study including coated Ti alloy substrates, a reduction in current density more than two order in magnitude. As conclusion, Ti-Ta, Ti-Zr, Ti-Nb and Ti-Hf coatings have been developed for improving corrosion resistance of AISI 304 and AISI 316 materials. After corrosion tests in several industry environments, substrates have shown improvements on corrosion resistance. Similar processes have been carried out in Ti alloy (99%) substrates. Coated AISI 304 and AISI 316 stainless steel, might reach similar corrosion protection on the surface than uncoated Ti alloy (99%). Moreover, coated Ti Alloy (99%) might increase its corrosion resistance using these coatings. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=coatings" title="coatings">coatings</a>, <a href="https://publications.waset.org/abstracts/search?q=corrosion" title=" corrosion"> corrosion</a>, <a href="https://publications.waset.org/abstracts/search?q=PVD" title=" PVD"> PVD</a>, <a href="https://publications.waset.org/abstracts/search?q=stainless%20steel" title=" stainless steel"> stainless steel</a> </p> <a href="https://publications.waset.org/abstracts/90961/corrosion-protective-coatings-in-machines-design" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/90961.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">158</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1727</span> Effects of Tensile Pre-Stresses on Corrosion Behavior of AISI 304 Stainless Steel in 1N H2SO4</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Sami%20Ibrahim%20Jafar">Sami Ibrahim Jafar</a>, <a href="https://publications.waset.org/abstracts/search?q=Israa%20Abud%20Alkadir"> Israa Abud Alkadir</a>, <a href="https://publications.waset.org/abstracts/search?q=Samah%20Abdul%20Kareem%20Khashin"> Samah Abdul Kareem Khashin</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The aim of this work is to assess the influence of tensile pre-stresses on the microstructure and corrosion behavior of the AISI304 stainless steel in 1N H2SO4 austenitic stainless steel. Samples of this stainless steel either with pre-stresses, corresponding to [255, 305, 355, 405, 455, 505, 555, 605 and σf] MPa induced by tensile tests, or without pre-stresses (as received), were characterized regarding their microstructure to investigate the pre-tensile stress effects on the corrosion behavior. The results showed that the corrosion rate of elastic pre-stresses 304 stainless steel was very little increased compared with that of as received specimens. The corrosion rate increases after applying pre-stress between (σ255 - σ 455) MPa. The microstructure showed that the austenitic grains begin to deform in the direction of applied pre-stresses. The maximum hardness at this region was (229.2) Hv, but at higher pre-stress (σ455 – σ 605) MPa unanticipated occurrence, the corrosion rate decreases. The microstructure inspection shows the deformed austenitic grain and ά-martensitic phase needle are appeared inside austenitic grains and the hardness reached the maximum value (332.433) Hv. The results showed that the corrosion rate increases at the values of pre-stresses between (σ605 – σf) MPa., which is inspected the result. The necking of gauge length of specimens occurs in specimens and this leads to deterioration in original properties and the corrosion rate reaches the maximum value. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=tensile%20pre-stresses" title="tensile pre-stresses">tensile pre-stresses</a>, <a href="https://publications.waset.org/abstracts/search?q=corrosion%20rate" title=" corrosion rate"> corrosion rate</a>, <a href="https://publications.waset.org/abstracts/search?q=austenitic%20stainless%20steel" title=" austenitic stainless steel"> austenitic stainless steel</a>, <a href="https://publications.waset.org/abstracts/search?q=hardness" title=" hardness"> hardness</a> </p> <a href="https://publications.waset.org/abstracts/47841/effects-of-tensile-pre-stresses-on-corrosion-behavior-of-aisi-304-stainless-steel-in-1n-h2so4" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/47841.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">411</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1726</span> Cold Spray Deposition of SS316L Powders on Al5052 Substrates and Their Potential Using for Biomedical Applications</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=B.%20Dikici">B. Dikici</a>, <a href="https://publications.waset.org/abstracts/search?q=I.%20Ozdemir"> I. Ozdemir</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20Topuz"> M. Topuz</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The corrosion behaviour of 316L stainless steel coatings obtained by cold spray method was investigated in this study. 316L powders were deposited onto Al5052 aluminum substrates. The coatings were produced using nitrogen (N<sub>2</sub>) process gas. In order to further improve the corrosion and mechanical properties of the coatings, heat treatment was applied at 250 and 750 °C. The corrosion performances of the coatings were compared using the potentiodynamic scanning (PDS) technique under <em>in-vitro</em> conditions (in Ringer’s solution at 37 °C). In addition, the hardness and porosity tests were carried out on the coatings. Microstructural characterization of the coatings was carried out by using scanning electron microscopy attached with energy dispersive spectrometer (SEM-EDS) and X-ray diffraction (XRD) technique. It was found that clean surfaces and a good adhesion were achieved for particle/substrate bonding. The heat treatment process provided both elimination of the anisotropy in the coating and resulting in healing-up of the incomplete interfaces between the deposited particles. It was found that the corrosion potential of the annealed coatings at 750 °C was higher than that of commercially 316 L stainless steel. Moreover, the microstructural investigations after the corrosion tests revealed that corrosion preferentially starts at inter-splat boundaries. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=biomaterials" title="biomaterials">biomaterials</a>, <a href="https://publications.waset.org/abstracts/search?q=cold%20spray" title=" cold spray"> cold spray</a>, <a href="https://publications.waset.org/abstracts/search?q=316L" title=" 316L"> 316L</a>, <a href="https://publications.waset.org/abstracts/search?q=corrosion" title=" corrosion"> corrosion</a>, <a href="https://publications.waset.org/abstracts/search?q=heat%20treatment" title=" heat treatment"> heat treatment</a> </p> <a href="https://publications.waset.org/abstracts/49307/cold-spray-deposition-of-ss316l-powders-on-al5052-substrates-and-their-potential-using-for-biomedical-applications" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/49307.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">370</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1725</span> Damage to LCP by the Ratcheting Phenomenon Under Cyclic Motion in Oligocyclic Fatigue</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Aboussalih%20Amira">Aboussalih Amira</a>, <a href="https://publications.waset.org/abstracts/search?q=Zarza%20Tahar"> Zarza Tahar</a>, <a href="https://publications.waset.org/abstracts/search?q=Fedaoui%20Kamel"> Fedaoui Kamel</a>, <a href="https://publications.waset.org/abstracts/search?q=Baroura%20Lazhar"> Baroura Lazhar</a>, <a href="https://publications.waset.org/abstracts/search?q=Hammoudi%20Salah"> Hammoudi Salah</a> </p> <p class="card-text"><strong>Abstract:</strong></p> 316 L steel is a stainless steel frequently used in orthopedic surgery; in the design of implants (hip, knee, shoulder, ankle, etc.), in dental surgery, cardiology, ophthalmology. Before any use, it is essential to predict the macroscopic phenomenological behavior of the material, and to analyze its response. The behavior of 316 L steel in low cycle fatigue, under uniaxial cyclic loading of tension/compression, producing significant plastic deformations leading to material damage. This investigation allowed us to characterize the behavior of the 316L steel employed in the locking of the compression plates (LCP), of which they are generally used in orthopedics to stabilize the fractured bone parts. And to perceive the phenomenon of Ratcheting leading to the damage of LCP by an excess of plastic deformation under nonsymmetrical alternated imposed constraint in low cycle fatigue. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=316L%20SS" title="316L SS">316L SS</a>, <a href="https://publications.waset.org/abstracts/search?q=locking%20compression%20plate" title=" locking compression plate"> locking compression plate</a>, <a href="https://publications.waset.org/abstracts/search?q=low%20cycle%20fatigue" title=" low cycle fatigue"> low cycle fatigue</a>, <a href="https://publications.waset.org/abstracts/search?q=ratcheting" title=" ratcheting"> ratcheting</a> </p> <a href="https://publications.waset.org/abstracts/182140/damage-to-lcp-by-the-ratcheting-phenomenon-under-cyclic-motion-in-oligocyclic-fatigue" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/182140.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">63</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1724</span> Tribological Behaviour of the Degradation Process of Additive Manufactured Stainless Steel 316L</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Yunhan%20Zhang">Yunhan Zhang</a>, <a href="https://publications.waset.org/abstracts/search?q=Xiaopeng%20Li"> Xiaopeng Li</a>, <a href="https://publications.waset.org/abstracts/search?q=Zhongxiao%20Peng"> Zhongxiao Peng</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Additive manufacturing (AM) possesses several key characteristics, including high design freedom, energy-efficient manufacturing process, reduced material waste, high resolution of finished products, and excellent performance of finished products. These advantages have garnered widespread attention and fueled rapid development in recent decades. AM has significantly broadened the spectrum of available materials in the manufacturing industry and is gradually replacing some traditionally manufactured parts. Similar to components produced via traditional methods, products manufactured through AM are susceptible to degradation caused by wear during their service life. Given the prevalence of 316L stainless steel (SS) parts and the limited research on the tribological behavior of 316L SS samples or products fabricated using AM technology, this study aims to investigate the degradation process and wear mechanisms of 316L SS disks fabricated using AM technology. The wear mechanisms and tribological performance of these AM-manufactured samples are compared with commercial 316L SS samples made using conventional methods. Additionally, methods to enhance the tribological performance of additive-manufactured SS samples are explored. Four disk samples with a diameter of 75 mm and a thickness of 10 mm are prepared. Two of them (Group A) are prepared from a purchased SS bar using a milling method. The other two disks (Group B), with the same dimensions, are made of Gas Atomized 316L Stainless Steel (size range: 15-45 µm) purchased from Carpenter Additive and produced using Laser Powder Bed Fusion (LPBF). Pin-on-disk tests are conducted on these disks, which have similar surface roughness and hardness levels. Multiple tests are carried out under various operating conditions, including varying loads and/or speeds, and the friction coefficients are measured during these tests. In addition, the evolution of the surface degradation processes is monitored by creating moulds of the wear tracks and quantitatively analyzing the surface morphologies of the mould images. This analysis involves quantifying the depth and width of the wear tracks and analyzing the wear debris generated during the wear processes. The wear mechanisms and wear performance of these two groups of SS samples are compared. The effects of load and speed on the friction coefficient and wear rate are investigated. The ultimate goal is to gain a better understanding of the surface degradation of additive-manufactured SS samples. This knowledge is crucial for enhancing their anti-wear performance and extending their service life. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=degradation%20process" title="degradation process">degradation process</a>, <a href="https://publications.waset.org/abstracts/search?q=additive%20manufacturing" title=" additive manufacturing"> additive manufacturing</a>, <a href="https://publications.waset.org/abstracts/search?q=stainless%20steel" title=" stainless steel"> stainless steel</a>, <a href="https://publications.waset.org/abstracts/search?q=surface%20features" title=" surface features"> surface features</a> </p> <a href="https://publications.waset.org/abstracts/172824/tribological-behaviour-of-the-degradation-process-of-additive-manufactured-stainless-steel-316l" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/172824.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">79</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1723</span> Computation of Stress Intensity Factor Using Extended Finite Element Method </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mahmoudi%20Noureddine">Mahmoudi Noureddine</a>, <a href="https://publications.waset.org/abstracts/search?q=Bouregba%20Rachid"> Bouregba Rachid </a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this paper the stress intensity factors of a slant-cracked plate of AISI 304 stainless steel, have been calculated using extended finite element method and finite element method (FEM) in ABAQUS software, the results were compared with theoretical values. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=stress%20intensity%20factors" title="stress intensity factors">stress intensity factors</a>, <a href="https://publications.waset.org/abstracts/search?q=extended%20finite%20element%20method" title=" extended finite element method"> extended finite element method</a>, <a href="https://publications.waset.org/abstracts/search?q=stainless%20steel" title=" stainless steel"> stainless steel</a>, <a href="https://publications.waset.org/abstracts/search?q=abaqus" title=" abaqus"> abaqus</a> </p> <a href="https://publications.waset.org/abstracts/22230/computation-of-stress-intensity-factor-using-extended-finite-element-method" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/22230.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">618</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1722</span> The Comparison of Chromium Ions Release for Stainless Steel between Artificial Saliva and Breadfruit Leaf Extracts</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mirna%20Febriani">Mirna Febriani</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The use of stainless steel wires in the field of dentistry is widely used, especially for orthodontic and prosthodontic treatment using stainless steel wire. The oral cavity is the ideal environment for corrosion, which can be caused by saliva. Prevention of corrosion on stainless steel wires can be done by using an organic or non-organic corrosion inhibitor. One of the organic inhibitors that can be used to prevent corrosion is the leaves of breadfruit. The method used for this research using Atomic Absorption Spectrophotometric test. The results showed that the difference of chromium ion releases on soaking in saliva and breadfruit leaf extracts on days 1, 3, 7 and 14. Statically calculation with independent T-test with p < 0,05 showed the significant difference. The conclusion of this study shows that breadfruit leaf extract can inhibit the corrosion rate of stainless steel wires. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=chromium%20ion" title="chromium ion">chromium ion</a>, <a href="https://publications.waset.org/abstracts/search?q=stainless%20steel" title=" stainless steel"> stainless steel</a>, <a href="https://publications.waset.org/abstracts/search?q=artificial%20saliva" title=" artificial saliva"> artificial saliva</a>, <a href="https://publications.waset.org/abstracts/search?q=breadfruit%20leaf" title=" breadfruit leaf"> breadfruit leaf</a> </p> <a href="https://publications.waset.org/abstracts/87086/the-comparison-of-chromium-ions-release-for-stainless-steel-between-artificial-saliva-and-breadfruit-leaf-extracts" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/87086.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">169</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1721</span> Effect of Solution Heat Treatment on Intergranular Corrosion Resistance of Welded Stainless Steel AISI 321</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Amir%20Mahmoudi">Amir Mahmoudi </a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this investigation, AISI321 steel after welding by Shilded Metal Arc Welding (SMAW) was solution heat treated in various temperatures and times, and then was sensitizied. Results indicated, increasing of temperature in solution heat treatment raises the sensitization and creates the cavity structure in grain boundaries. Besides, in order to examine the effect of time on solution heat treatment, all samples were solution heat treated at different times and fixed temperature (1050°C). By increasing the time, more chrome carbides were created due to dissolution of delta ferrite phase and reproduce titanium carbides. Additionally, the best process for solution heat treatment for this steel was suggested. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=stainless%20steel" title="stainless steel">stainless steel</a>, <a href="https://publications.waset.org/abstracts/search?q=solution%20heat%20treatment" title=" solution heat treatment"> solution heat treatment</a>, <a href="https://publications.waset.org/abstracts/search?q=intergranular%20corrosion" title=" intergranular corrosion"> intergranular corrosion</a>, <a href="https://publications.waset.org/abstracts/search?q=DLEPR" title=" DLEPR"> DLEPR</a> </p> <a href="https://publications.waset.org/abstracts/26566/effect-of-solution-heat-treatment-on-intergranular-corrosion-resistance-of-welded-stainless-steel-aisi-321" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/26566.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">521</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1720</span> Pre-Transformation Phase Reconstruction for Deformation-Induced Transformation in AISI 304 Austenitic Stainless Steel</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Manendra%20Singh%20Parihar">Manendra Singh Parihar</a>, <a href="https://publications.waset.org/abstracts/search?q=Sandip%20Ghosh%20Chowdhury"> Sandip Ghosh Chowdhury</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Austenitic stainless steels are widely used and give a good combination of properties. When this steel is plastically deformed, a phase transformation of the metastable Face Centred Cubic Austenite to the stable Body Centred Cubic (α’) or to the Hexagonal close packed (ԑ) martensite may occur, leading to the enhancement in the mechanical properties like strength. The work was based on variant selection and corresponding texture analysis for the strain induced martensitic transformation during deformation of the parent austenite FCC phase to form the product HCP and the BCC martensite phases separately, obeying their respective orientation relationships. The automated method for reconstruction of the parent phase orientation using the EBSD data of the product phase orientation is done using the MATLAB and TSL-OIM software. The method of triplets was used which involves the formation of a triplet of neighboring product grains having a common variant and linking them using a misorientation-based criterion. This led to the proper reconstruction of the pre-transformation phase orientation data and thus to its microstructure and texture. The computational speed of current method is better compared to the previously used methods of reconstruction. The reconstruction of austenite from ԑ and α’ martensite was carried out for multiple samples and their IPF images, pole figures, inverse pole figures and ODFs were compared. Similar type of results was observed for all samples. The comparison gives the idea for estimating the correct sequence of the transformation i.e. γ → ε → α’ or γ → α’, during deformation of AISI 304 austenitic stainless steel. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=variant%20selection" title="variant selection">variant selection</a>, <a href="https://publications.waset.org/abstracts/search?q=reconstruction" title=" reconstruction"> reconstruction</a>, <a href="https://publications.waset.org/abstracts/search?q=EBSD" title=" EBSD"> EBSD</a>, <a href="https://publications.waset.org/abstracts/search?q=austenitic%20stainless%20steel" title=" austenitic stainless steel"> austenitic stainless steel</a>, <a href="https://publications.waset.org/abstracts/search?q=martensitic%20transformation" title=" martensitic transformation"> martensitic transformation</a> </p> <a href="https://publications.waset.org/abstracts/28354/pre-transformation-phase-reconstruction-for-deformation-induced-transformation-in-aisi-304-austenitic-stainless-steel" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/28354.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">497</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1719</span> Variant Selection and Pre-transformation Phase Reconstruction for Deformation-Induced Transformation in AISI 304 Austenitic Stainless Steel</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Manendra%20Singh%20Parihar">Manendra Singh Parihar</a>, <a href="https://publications.waset.org/abstracts/search?q=Sandip%20Ghosh%20Chowdhury"> Sandip Ghosh Chowdhury</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Austenitic stainless steels are widely used and give a good combination of properties. When this steel is plastically deformed, a phase transformation of the metastable Face Centred Cubic Austenite to the stable Body Centred Cubic (α’) or to the Hexagonal close packed (ԑ) martensite may occur, leading to the enhancement in the mechanical properties like strength. The work was based on variant selection and corresponding texture analysis for the strain induced martensitic transformation during deformation of the parent austenite FCC phase to form the product HCP and the BCC martensite phases separately, obeying their respective orientation relationships. The automated method for reconstruction of the parent phase orientation using the EBSD data of the product phase orientation is done using the MATLAB and TSL-OIM software. The method of triplets was used which involves the formation of a triplet of neighboring product grains having a common variant and linking them using a misorientation-based criterion. This led to the proper reconstruction of the pre-transformation phase orientation data and thus to its micro structure and texture. The computational speed of current method is better compared to the previously used methods of reconstruction. The reconstruction of austenite from ԑ and α’ martensite was carried out for multiple samples and their IPF images, pole figures, inverse pole figures and ODFs were compared. Similar type of results was observed for all samples. The comparison gives the idea for estimating the correct sequence of the transformation i.e. γ → ε → α’ or γ → α’, during deformation of AISI 304 austenitic stainless steel. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=variant%20selection" title="variant selection">variant selection</a>, <a href="https://publications.waset.org/abstracts/search?q=reconstruction" title=" reconstruction"> reconstruction</a>, <a href="https://publications.waset.org/abstracts/search?q=EBSD" title=" EBSD"> EBSD</a>, <a href="https://publications.waset.org/abstracts/search?q=austenitic%20stainless%20steel" title=" austenitic stainless steel"> austenitic stainless steel</a>, <a href="https://publications.waset.org/abstracts/search?q=martensitic%20transformation" title=" martensitic transformation"> martensitic transformation</a> </p> <a href="https://publications.waset.org/abstracts/24633/variant-selection-and-pre-transformation-phase-reconstruction-for-deformation-induced-transformation-in-aisi-304-austenitic-stainless-steel" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/24633.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">489</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1718</span> Effect of Ultrasonic Vibration on the Dilution, Mechanical, and Metallurgical Properties in Cladding of 308 on Mild Steel</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Sandeep%20Singh%20Sandhu">Sandeep Singh Sandhu</a>, <a href="https://publications.waset.org/abstracts/search?q=Karanvir%20Singh%20Ghuman"> Karanvir Singh Ghuman</a>, <a href="https://publications.waset.org/abstracts/search?q=Parminder%20Singh%20Saini">Parminder Singh Saini</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The aim of the present investigation was to study the effect of ultrasonic vibration on the cladding of the AISI 308 on the mild steel plates using the shielded metal arc welding (SMAW). Ultrasonic vibrations were applied to molten austenitic stainless steel during the welding process. Due to acoustically induced cavitations and streaming there is a complete mixture of the clad metal and the base metal. It was revealed that cladding of AISI 308 over mild steel along with ultrasonic vibrations result in uniform and finer grain structures. The effect of the vibration on the dilution, mechanical properties and metallographic studies were also studied. It was found that the welding done using the ultrasonic vibration has the less dilution and CVN value for the vibrated sample was also high. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=surfacing" title="surfacing">surfacing</a>, <a href="https://publications.waset.org/abstracts/search?q=ultrasonic%20vibrations" title=" ultrasonic vibrations"> ultrasonic vibrations</a>, <a href="https://publications.waset.org/abstracts/search?q=mechanical%20properties" title=" mechanical properties"> mechanical properties</a>, <a href="https://publications.waset.org/abstracts/search?q=shielded%20metal%20arc%20welding" title=" shielded metal arc welding"> shielded metal arc welding</a> </p> <a href="https://publications.waset.org/abstracts/33132/effect-of-ultrasonic-vibration-on-the-dilution-mechanical-and-metallurgical-properties-in-cladding-of-308-on-mild-steel" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/33132.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">492</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1717</span> Study the Effect of Sensitization on the Microstructure and Mechanical Properties of Gas Tungsten Arc Welded AISI 304 Stainless Steel Joints</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Viranshu%20Kumar">Viranshu Kumar</a>, <a href="https://publications.waset.org/abstracts/search?q=Hitesh%20Arora"> Hitesh Arora</a>, <a href="https://publications.waset.org/abstracts/search?q=Pradeep%20Joshi"> Pradeep Joshi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> SS 304 is Austenitic stainless steel with Chromium and Nickel as basic constituents. It has excellent corrosion resistance properties and very good weldability. Austenitic stainless steels have superior mechanical properties at high temperatures and are used extensively in a range of applications. SS 304L has wide applications in various industries viz. Nuclear, Pharmaceutical, marine, chemical etc. due to its excellent applications and ease of joining this material has become very popular for fabrication as well as weld surfacing. Austenitic stainless steels have a tendency to form chromium depleted zones at the grain boundaries during welding and heat treatment, where chromium combines with available carbon in the vicinity of the grain boundaries, to produce an area depleted in chromium, and thus becomes susceptible to intergranular corrosion. This phenomenon is known as sensitization. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=sensitization" title="sensitization">sensitization</a>, <a href="https://publications.waset.org/abstracts/search?q=SS%20304" title=" SS 304"> SS 304</a>, <a href="https://publications.waset.org/abstracts/search?q=GTAW" title=" GTAW"> GTAW</a>, <a href="https://publications.waset.org/abstracts/search?q=mechanical%20properties" title=" mechanical properties"> mechanical properties</a>, <a href="https://publications.waset.org/abstracts/search?q=carbideprecipitationHAZ" title=" carbideprecipitationHAZ"> carbideprecipitationHAZ</a>, <a href="https://publications.waset.org/abstracts/search?q=microstructure" title=" microstructure"> microstructure</a>, <a href="https://publications.waset.org/abstracts/search?q=micro%20hardness" title=" micro hardness"> micro hardness</a>, <a href="https://publications.waset.org/abstracts/search?q=tensile%20strength" title=" tensile strength"> tensile strength</a> </p> <a href="https://publications.waset.org/abstracts/21758/study-the-effect-of-sensitization-on-the-microstructure-and-mechanical-properties-of-gas-tungsten-arc-welded-aisi-304-stainless-steel-joints" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/21758.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">398</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1716</span> Fabrication of a Continuous Flow System for Biofilm Studies</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mohammed%20Jibrin%20Ndejiko">Mohammed Jibrin Ndejiko</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Modern and current models such as flow cell technology which enhances a non-destructive growth and inspection of the sessile microbial communities revealed a great understanding of biofilms. A continuous flow system was designed to evaluate possibility of biofilm formation by Escherichia coli DH5α on the stainless steel (type 304) under continuous nutrient supply. The result of the colony forming unit (CFU) count shows that bacterial attachment and subsequent biofilm formation on stainless steel coupons with average surface roughness of 1.5 ± 1.8 µm and 2.0 ± 0.09 µm were both significantly higher (p ≤ 0.05) than those of the stainless steel coupon with lower surface roughness of 0.38 ± 1.5 µm. These observations support the hypothesis that surface profile is one of the factors that influence biofilm formation on stainless steel surfaces. The SEM and FESEM micrographs of the stainless steel coupons also revealed the attached Escherichia coli DH5α biofilm and dehydrated extracellular polymeric substance on the stainless steel surfaces. Thus, the fabricated flow system represented a very useful tool to study biofilm formation under continuous nutrient supply. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=biofilm" title="biofilm">biofilm</a>, <a href="https://publications.waset.org/abstracts/search?q=flowcell" title=" flowcell"> flowcell</a>, <a href="https://publications.waset.org/abstracts/search?q=stainless%20steel" title=" stainless steel"> stainless steel</a>, <a href="https://publications.waset.org/abstracts/search?q=coupon" title=" coupon"> coupon</a> </p> <a href="https://publications.waset.org/abstracts/49119/fabrication-of-a-continuous-flow-system-for-biofilm-studies" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/49119.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">317</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1715</span> Characterization of Martensitic Stainless Steel Japanese Grade AISI 420A</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=T.%20Z.%20Butt">T. Z. Butt</a>, <a href="https://publications.waset.org/abstracts/search?q=T.%20A.%20Tabish"> T. A. Tabish</a>, <a href="https://publications.waset.org/abstracts/search?q=K.%20Anjum"> K. Anjum</a>, <a href="https://publications.waset.org/abstracts/search?q=H.%20Hafeez"> H. Hafeez</a> </p> <p class="card-text"><strong>Abstract:</strong></p> A study of martensitic stainless steel surgical grade AISI 420A produced in Japan was carried out in this research work. The sample was already annealed at about 898˚C. The sample were subjected to chemical analysis, hardness, tensile and metallographic tests. These tests were performed on as received annealed and heat treated samples. In the annealed condition the sample showed 0HRC. However, on tensile testing, in annealed condition the sample showed maximum elongation. The heat treatment is carried out in vacuum furnace within temperature range 980-1035°C. The quenching of samples was carried out using liquid nitrogen. After hardening, the samples were subjected to tempering, which was carried out in vacuum tempering furnace at a temperature of 220˚C. The hardened samples were subjected to hardness and tensile testing. In hardness testing, the samples showed maximum hardness values. In tensile testing the sample showed minimum elongation. The sample in annealed state showed coarse plates of martensite structure. Therefore, the studied steels can be used as biomaterials. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=biomaterials" title="biomaterials">biomaterials</a>, <a href="https://publications.waset.org/abstracts/search?q=martensitic%20steel" title=" martensitic steel"> martensitic steel</a>, <a href="https://publications.waset.org/abstracts/search?q=microsrtucture" title=" microsrtucture"> microsrtucture</a>, <a href="https://publications.waset.org/abstracts/search?q=tensile%20testing" title=" tensile testing"> tensile testing</a>, <a href="https://publications.waset.org/abstracts/search?q=hardening" title=" hardening"> hardening</a>, <a href="https://publications.waset.org/abstracts/search?q=tempering" title=" tempering"> tempering</a>, <a href="https://publications.waset.org/abstracts/search?q=bioinstrumentation" title=" bioinstrumentation"> bioinstrumentation</a> </p> <a href="https://publications.waset.org/abstracts/9072/characterization-of-martensitic-stainless-steel-japanese-grade-aisi-420a" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/9072.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">277</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1714</span> The Comparison of Chromium Ions Release Stainless Steel 18-8 between Artificial Saliva and Black Tea Leaves Extracts</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Nety%20Trisnawaty">Nety Trisnawaty</a>, <a href="https://publications.waset.org/abstracts/search?q=Mirna%20Febriani"> Mirna Febriani</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The use of stainless steel wires in the field of dentistry is widely used, especially for orthodontic and prosthodontic treatment using stainless steel wire. The oral cavity is the ideal environment for corrosion, which can be caused by saliva. Prevention of corrosion on stainless steel wires can be done by using an organic or non-organic corrosion inhibitor. One of the organic inhibitors that can be used to prevent corrosion is black tea leaves extracts. To explain the comparison of chromium ions release for stainlees steel between artificial saliva and black tea leaves extracts. In this research we used artificial saliva, black tea leaves extracts, stainless steel wire and using Atomic Absorption Spectrophometric testing machine. The samples were soaked for 1, 3, 7 and 14 days in the artificial saliva and black tea leaves extracts. The results showed the difference of chromium ion release soaked in artificial saliva and black tea leaves extracts on days 1, 3, 7 and 14. Statistically, calculation with independent T-test with p < 0,05 showed a significant difference. The longer the duration of days, the more ion chromium were released. The conclusion of this study shows that black tea leaves extracts can inhibit the corrosion rate of stainless steel wires. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=chromium%20ion" title="chromium ion">chromium ion</a>, <a href="https://publications.waset.org/abstracts/search?q=stainless%20steel" title=" stainless steel"> stainless steel</a>, <a href="https://publications.waset.org/abstracts/search?q=artificial%20saliva" title=" artificial saliva"> artificial saliva</a>, <a href="https://publications.waset.org/abstracts/search?q=black%20tea%20leaves%20extracts" title=" black tea leaves extracts"> black tea leaves extracts</a> </p> <a href="https://publications.waset.org/abstracts/94605/the-comparison-of-chromium-ions-release-stainless-steel-18-8-between-artificial-saliva-and-black-tea-leaves-extracts" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/94605.pdf" target="_blank" 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