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behavior</title> <meta name="description" content="Search results for: corrosion behavior"> <meta name="keywords" content="corrosion behavior"> <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 class="d-block d-lg-none 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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="corrosion behavior"> <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> 6988</div> </div> </div> </div> <h1 class="mt-3 mb-3 text-center" style="font-size:1.6rem;">Search results for: corrosion behavior</h1> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">6988</span> Comparative Study of Impedance Parameters for 42CrMo4 Steel Nitrided and Exposed at Electrochemical Corrosion</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=M.%20H.%20Belahssen">M. H. Belahssen</a>, <a href="https://publications.waset.org/abstracts/search?q=S.%20Benramache"> S. Benramache</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper presents corrosion behavior of alloy 42CrMo4 steel nitrided by plasma. Different samples nitrided were tested. The corrosion behavior was evaluated by electrochemical impedance spectroscopy and the tests were carried out in acid chloride solution 1M. The best corrosion protection was observed for nitrided samples. The aim of this work is to compare equivalents circuits corresponding to Nyquist curves simulated and experimental and select who gives best results of impedance parameters with lowest error. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=pasma%20nitriding" title="pasma nitriding">pasma nitriding</a>, <a href="https://publications.waset.org/abstracts/search?q=steel" title=" steel"> steel</a>, <a href="https://publications.waset.org/abstracts/search?q=alloy%2042CrMo4" title=" alloy 42CrMo4"> alloy 42CrMo4</a>, <a href="https://publications.waset.org/abstracts/search?q=elecrochemistry" title=" elecrochemistry"> elecrochemistry</a>, <a href="https://publications.waset.org/abstracts/search?q=corrosion%20behavior" title=" corrosion behavior"> corrosion behavior</a> </p> <a href="https://publications.waset.org/abstracts/31227/comparative-study-of-impedance-parameters-for-42crmo4-steel-nitrided-and-exposed-at-electrochemical-corrosion" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/31227.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">371</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">6987</span> Corrosion Monitoring of Weathering Steel in a Simulated Coastal-Industrial Environment </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Thee%20Chowwanonthapunya">Thee Chowwanonthapunya</a>, <a href="https://publications.waset.org/abstracts/search?q=Junhua%20Dong"> Junhua Dong</a>, <a href="https://publications.waset.org/abstracts/search?q=Wei%20Ke"> Wei Ke</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The atmospheres in many cities along the coastal lines in the world have been rapidly changed to coastal-industrial atmosphere. Hence, it is vital to investigate the corrosion behavior of steel exposed to this kind of environment. In this present study, Electrochemical Impedance Spectrography (EIS) and film thickness measurements were applied to monitor the corrosion behavior of weathering steel covered with a thin layer of the electrolyte in a wet-dry cyclic condition, simulating a coastal-industrial environment at 25 oC and 60 % RH. The results indicate that in all cycles, the corrosion rate increases during the drying process due to an increase in anion concentration and an acceleration of oxygen diffusion enhanced by the effect of the thinning out of the electrolyte. During the wet-dry cyclic corrosion test, the long-term corrosion behavior of this steel depends on the periods of exposure. Corrosion process is first accelerated and then decelerated. The decelerating corrosion process is contributed to the formation of the protective rust, favored by the wet-dry cycle and the acid regeneration process during the rusting process. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=atmospheric%20corrosion" title="atmospheric corrosion">atmospheric corrosion</a>, <a href="https://publications.waset.org/abstracts/search?q=EIS" title=" EIS"> EIS</a>, <a href="https://publications.waset.org/abstracts/search?q=low%20alloy" title=" low alloy"> low alloy</a>, <a href="https://publications.waset.org/abstracts/search?q=rust" title=" rust "> rust </a> </p> <a href="https://publications.waset.org/abstracts/24922/corrosion-monitoring-of-weathering-steel-in-a-simulated-coastal-industrial-environment" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/24922.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">449</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">6986</span> The Corrosion Resistance of the 32CrMoV13 Steel Nitriding</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Okba%20Belahssen">Okba Belahssen</a>, <a href="https://publications.waset.org/abstracts/search?q=Lazhar%20Torchane"> Lazhar Torchane</a>, <a href="https://publications.waset.org/abstracts/search?q=Said%20Benramache"> Said Benramache</a>, <a href="https://publications.waset.org/abstracts/search?q=Abdelouahed%20Chala"> Abdelouahed Chala</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper presents corrosion behavior of the plasma-nitrided 32CrMoV13 steel. Different kinds of samples were tested: non-treated, plasma nitrided samples. The structure of layers was determined by X-ray diffraction, while the morphology was observed by scanning electron microscopy (SEM). The corrosion behavior was evaluated by electrochemical techniques (potentiodynamic curves and electrochemical impedance spectroscopy). The corrosion tests were carried out in acid chloride solution (HCl 1M). Experimental results showed that the nitrides ε-Fe2−3N and γ′-Fe4N present in the white layer are nobler than the substrate but may promote, by galvanic effect, a localized corrosion through open porosity. The better corrosion protection was observed for nitrided sample. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=plasma-nitrided" title="plasma-nitrided">plasma-nitrided</a>, <a href="https://publications.waset.org/abstracts/search?q=32CrMoV13%20steel" title=" 32CrMoV13 steel"> 32CrMoV13 steel</a>, <a href="https://publications.waset.org/abstracts/search?q=corrosion" title=" corrosion"> corrosion</a>, <a href="https://publications.waset.org/abstracts/search?q=EIS" title=" EIS"> EIS</a> </p> <a href="https://publications.waset.org/abstracts/9339/the-corrosion-resistance-of-the-32crmov13-steel-nitriding" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/9339.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">588</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">6985</span> High-Temperature Corrosion of Weldment of Fe-2%Mn-0.5%Si Steel in N2/H2O/H2S-Mixed Gas</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Sang%20Hwan%20Bak">Sang Hwan Bak</a>, <a href="https://publications.waset.org/abstracts/search?q=Min%20Jung%20Kim"> Min Jung Kim</a>, <a href="https://publications.waset.org/abstracts/search?q=Dong%20Bok%20Lee"> Dong Bok Lee</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Fe-2%Mn-0.5%Si-0.2C steel was welded and corroded at 600, 700 and 800oC for 20 h in 1 atm of N2/H2S/H2O-mixed gas in order to characterize the high-temperature corrosion behavior of the welded joint. Corrosion proceeded fast and almost linearly. It increased with an increase in the corrosion temperature. H2S formed FeS owing to sulfur released from H2S. The scales were fragile and nonadherent. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Fe-Mn-Si%20steel" title="Fe-Mn-Si steel">Fe-Mn-Si steel</a>, <a href="https://publications.waset.org/abstracts/search?q=corrosion" title=" corrosion"> corrosion</a>, <a href="https://publications.waset.org/abstracts/search?q=welding" title=" welding"> welding</a>, <a href="https://publications.waset.org/abstracts/search?q=sulfidation" title=" sulfidation"> sulfidation</a>, <a href="https://publications.waset.org/abstracts/search?q=H2S%20gas" title=" H2S gas"> H2S gas</a> </p> <a href="https://publications.waset.org/abstracts/45776/high-temperature-corrosion-of-weldment-of-fe-2mn-05si-steel-in-n2h2oh2s-mixed-gas" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/45776.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">408</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">6984</span> The Behavior of Steel, Copper, and Aluminum vis-à-vis the Corrosion in an Aqueous Medium</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Harche%20Rima">Harche Rima</a>, <a href="https://publications.waset.org/abstracts/search?q=Laoufi%20Nadia%20Aicha"> Laoufi Nadia Aicha</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The present work consists of studying the behavior of steel, copper, and aluminum vis-à-vis the corrosion in an aqueous medium in the presence of the antifreeze COOLELF MDX -26°C. For this, we have studied the influence of the temperature and the different concentrations of the antifreeze on the corrosion of these three metals, this will last for two months by the polarization method and weight loss. In the end, we investigated the samples with the optic microscope to know their surface state. The aim of this work is the protection of contraptions. The use of antifreeze in ordinary water has a high efficiency against steel corrosion, as demonstrated by electrochemical tests (potential monitoring as a function of time and tracing polarization curves). The inhibition rate is greater than 99% for different volume concentrations, ranging from 40% to 60%. The speeds are in turn low in the order of 10-4 mm/year. On the other hand, the addition of antifreeze to ordinary water increases the corrosion potential of steel by more than 400 mV. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=corrosion%20and%20prevention" title="corrosion and prevention">corrosion and prevention</a>, <a href="https://publications.waset.org/abstracts/search?q=steel" title=" steel"> steel</a>, <a href="https://publications.waset.org/abstracts/search?q=copper" title=" copper"> copper</a>, <a href="https://publications.waset.org/abstracts/search?q=aluminum" title=" aluminum"> aluminum</a>, <a href="https://publications.waset.org/abstracts/search?q=corrosion%20inhibitor" title=" corrosion inhibitor"> corrosion inhibitor</a>, <a href="https://publications.waset.org/abstracts/search?q=anti-cooling" title=" anti-cooling"> anti-cooling</a> </p> <a href="https://publications.waset.org/abstracts/185967/the-behavior-of-steel-copper-and-aluminum-vis-a-vis-the-corrosion-in-an-aqueous-medium" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/185967.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">50</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">6983</span> Effect of Relative Humidity on Corrosion Behavior of SN-0.7Cu Solder under Polyvinyl Chloride Fire Smoke Atmosphere</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Qian%20Li">Qian Li</a>, <a href="https://publications.waset.org/abstracts/search?q=Shouxiang%20Lu"> Shouxiang Lu</a> </p> <p class="card-text"><strong>Abstract:</strong></p> With the rapid increase in electric power use, wire and cable fire occur more and more frequent. The fire smoke has a corrosive effect on the solders, which seriously affects the function of electronic equipment. In this research, the effect of environment relative humidity on corrosion behavior of Sn-0.7Cu solder has been researched under 140 g·m⁻³ polyvinyl chloride (PVC) fire smoke atmosphere. The mass loss of Sn-0.7Cu solder increased with the relative humidity. Furthermore, the microstructures and corrosion mechanism were analyzed by using SEM, EDS, XRD, and XPS. The result shows that Sn₂₁Cl₁₆(OH)₁₄O₆ is the main corrosion products and the corrosion process is an electrochemical reaction. The present work could provide guidance to the risk assessment for electronic equipment rescue after a fire. <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=fire%20smoke" title=" fire smoke"> fire smoke</a>, <a href="https://publications.waset.org/abstracts/search?q=relative%20humidity" title=" relative humidity"> relative humidity</a>, <a href="https://publications.waset.org/abstracts/search?q=Sn-0.7Cu%20solder" title=" Sn-0.7Cu solder"> Sn-0.7Cu solder</a> </p> <a href="https://publications.waset.org/abstracts/108764/effect-of-relative-humidity-on-corrosion-behavior-of-sn-07cu-solder-under-polyvinyl-chloride-fire-smoke-atmosphere" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/108764.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">365</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">6982</span> Effect of Heat Treatment on the Corrosion Behavior of Stainless Steel</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Altoumi%20Alndalusi">Altoumi Alndalusi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The work examines the aqueous corrosion behavior of grades of stain less steel which are used as corrosion resistant castings for applications such as valve and pump bodies. The corrosion behavior of steels in the as-cast condition has been examined using potentiostatic studies to illustrate the need for correct thermal treatment. A metallurgical examination and chemical analysis were carried out to establish the morphology of the steel structure. Heat treatment was carried out in order to compare damage in relation to microstructure. Optical and scanning electron microscopy examinations confirmed that the austenitic steels suffers from severe localized inter-dendritic pitting attack, while non homogenized castings highly alloyed duplex steels gave inferior corrosion resistance. Through the heat treatment conditions a significant of phase transformation of the duplex steel C were occurred (from ferrite to austenite and sigma plus carbides) and were gave reduction resistance. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=cast" title="cast">cast</a>, <a href="https://publications.waset.org/abstracts/search?q=corrosion" title=" corrosion"> corrosion</a>, <a href="https://publications.waset.org/abstracts/search?q=duplex%20stainless" title=" duplex stainless"> duplex stainless</a>, <a href="https://publications.waset.org/abstracts/search?q=heat%20treatment" title=" heat treatment"> heat treatment</a>, <a href="https://publications.waset.org/abstracts/search?q=material" title=" material"> material</a>, <a href="https://publications.waset.org/abstracts/search?q=steel" title=" steel"> steel</a> </p> <a href="https://publications.waset.org/abstracts/80060/effect-of-heat-treatment-on-the-corrosion-behavior-of-stainless-steel" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/80060.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">175</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">6981</span> The Influence of Brazing Method on Corrosion Behavior of Brazed Aluminum Joints</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=F.%20Ghasim-akbari">F. Ghasim-akbari</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20M.%20Hadian"> A. M. Hadian</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20M.%20Aminazad"> A. M. Aminazad</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Fluid transmission pipes made of aluminum are widely use in petrochemical industries. For many applications they have to be brazed to each other. The brazed joints, in many cases, are encountered with corrosive medias. This paper reports a part of a work to investigate the corrosion behavior of brazed Al6061 using Al4047 as filler metal with and without the use of flux to discover the effect of different brazing atmospheres. The samples brazed under air, vacuum, argon, and hydrogen atmospheres. The interfacial area of the joints was examined to ensure being free of any defects. The sides of each test piece were covered with insulator and the surface of the joint was encountered to polarization test. The results revealed a significant difference of corrosion resistance. The samples that brazed under argon and hydrogen atmospheres had better corrosion resistance than other samples. Microstructure of the corroded joints revealed that the amount of the filler metal is a critical parameter on corrosion resistance of the joints. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=brazing" title="brazing">brazing</a>, <a href="https://publications.waset.org/abstracts/search?q=corrosion%20behavior" title=" corrosion behavior"> corrosion behavior</a>, <a href="https://publications.waset.org/abstracts/search?q=Al6061" title=" Al6061"> Al6061</a>, <a href="https://publications.waset.org/abstracts/search?q=polarization" title=" polarization"> polarization</a> </p> <a href="https://publications.waset.org/abstracts/24594/the-influence-of-brazing-method-on-corrosion-behavior-of-brazed-aluminum-joints" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/24594.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">498</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">6980</span> Study of the Behavior of Copper Immersed in Sea Water of the Bay of Large Agadir by Electrochemical Methods</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Aicha%20Chaouay">Aicha Chaouay</a>, <a href="https://publications.waset.org/abstracts/search?q=Lahsen%20Bazzi"> Lahsen Bazzi</a>, <a href="https://publications.waset.org/abstracts/search?q=Mustapha%20Hilali"> Mustapha Hilali</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Seawater has chemical and biological characteristics making it particularly aggressive in relation to the corrosion of many materials including copper and steels low or moderate allies. Note that these materials are widely used in the manufacture of port infrastructure in the marine environment. These structures are exposed to two types of corrosion including: general corrosion and localized corrosion caused by the presence of sulfite-reducing micro-organisms. This work contributes to the study of the problematic related to bacterial contamination of the marine environment of large Agadir and evaluating the impact of this pollution on the corrosion resistance of copper. For the realization of this work, we conducted monthly periodic draws between (October 2012 February 2013) of seawater from the Anza area of the Bay of Agadir. Thus, after each sampling, a study of the electro chemical corrosion behavior of copper was carried out. Electro chemical corrosion parameters such as the corrosion potential, the corrosion current density, the charge transfer resistance and the double layer capacity were evaluated. The electro chemical techniques used in this work are: the route potentiodynamic polarization curves and electro chemical impedance. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Bay%20of%20Agadir" title="Bay of Agadir">Bay of Agadir</a>, <a href="https://publications.waset.org/abstracts/search?q=microbial%20contamination" title=" microbial contamination"> microbial contamination</a>, <a href="https://publications.waset.org/abstracts/search?q=seawater%20%28Morocco%29" title=" seawater (Morocco)"> seawater (Morocco)</a>, <a href="https://publications.waset.org/abstracts/search?q=corrosion" title=" corrosion"> corrosion</a>, <a href="https://publications.waset.org/abstracts/search?q=copper" title=" copper"> copper</a> </p> <a href="https://publications.waset.org/abstracts/18219/study-of-the-behavior-of-copper-immersed-in-sea-water-of-the-bay-of-large-agadir-by-electrochemical-methods" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/18219.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">508</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">6979</span> Influence of Graphene Content on Corrosion Behavior of Electrodeposited Zinc–Graphene Composite Coatings</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Bin%20Yang">Bin Yang</a>, <a href="https://publications.waset.org/abstracts/search?q=Xiaofang%20Chen"> Xiaofang Chen</a>, <a href="https://publications.waset.org/abstracts/search?q=Guangxin%20Wang"> Guangxin Wang</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Zinc coating as a sacrificial protection plays an important role in the traditional steel anticorrosion field. Adding second-phase reinforcement particles into zinc matrix is an interesting approach to further enhance its corrosion performance. In this paper, pure Zn and Zn–graphene composite coatings of different graphene contents were prepared by direct current electrodeposition on 304 stainless steel substrate. The coatings were characterized by XRD, SEM/EDS, and Raman spectroscopy. Tafel polarization and electrochemical impedance spectroscopic methods were used to study their corrosion behavior. Result obtained have shown that the concentration of grapheme oxide (GO) in zinc sulfate bath has an important effect on textured structure and surface morphology of Zn–graphene composite coatings. The coating prepared with 1.0g/L GO has shown the best corrosion resistance compared to other coatings prepared in this study. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Zn-graphene%20coatings" title="Zn-graphene coatings">Zn-graphene coatings</a>, <a href="https://publications.waset.org/abstracts/search?q=electrodeposition" title=" electrodeposition"> electrodeposition</a>, <a href="https://publications.waset.org/abstracts/search?q=microstructure" title=" microstructure"> microstructure</a>, <a href="https://publications.waset.org/abstracts/search?q=corrosion%20behavior" title=" corrosion behavior"> corrosion behavior</a> </p> <a href="https://publications.waset.org/abstracts/78729/influence-of-graphene-content-on-corrosion-behavior-of-electrodeposited-zinc-graphene-composite-coatings" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/78729.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">259</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">6978</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">814</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">6977</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">6976</span> Microstructure of AlCrFeNiMn High Entropy Alloy and Its Corrosion Behavior in Supercritical CO₂ Environment</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Yang%20Wanhuan">Yang Wanhuan</a>, <a href="https://publications.waset.org/abstracts/search?q=Zou%20Jichun"> Zou Jichun</a>, <a href="https://publications.waset.org/abstracts/search?q=LI%20Shen"> LI Shen</a>, <a href="https://publications.waset.org/abstracts/search?q=Zhong%20Weihua"> Zhong Weihua</a>, <a href="https://publications.waset.org/abstracts/search?q=Yang%20Wen"> Yang Wen</a> </p> <p class="card-text"><strong>Abstract:</strong></p> High entropy alloys (HEAs) have aroused significant concern in high-temperature supercritical carbon dioxide (S-CO2) environments due to their unique microstructures and outstanding properties. However, the anti-corrosion ability and mechanism of these HEAs in the S-CO₂ remain unclear. Herein, we developed a new AlCrFeNiMn (AM)-HEA with double phases by vacuum arc melting furnace. The corrosion behavior of AM-HEA in the S-CO₂ at 500 ℃ under 25 MPa for 400 hours was deciphered by multiple characterization techniques. The results show that the discrepancy of corrosion between the matrix and boundary was accounted for by their microstructure and components. The role and mechanism of Mn contents for their oxide scales in boundary zones were emphasized. More importantly, the nano-precipitated second phase and numerous boundaries for the outstanding anti-corrosion ability of the matrix were proposed. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=high%20entropy%20alloy" title="high entropy alloy">high entropy alloy</a>, <a href="https://publications.waset.org/abstracts/search?q=microstructure" title=" microstructure"> microstructure</a>, <a href="https://publications.waset.org/abstracts/search?q=corrosion" title=" corrosion"> corrosion</a>, <a href="https://publications.waset.org/abstracts/search?q=supercritical%20carbon%20oxide" title=" supercritical carbon oxide"> supercritical carbon oxide</a>, <a href="https://publications.waset.org/abstracts/search?q=AlCrFeNiMn" title=" AlCrFeNiMn"> AlCrFeNiMn</a> </p> <a href="https://publications.waset.org/abstracts/174155/microstructure-of-alcrfenimn-high-entropy-alloy-and-its-corrosion-behavior-in-supercritical-co2-environment" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/174155.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">146</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">6975</span> Comparative Studies of the Effects of Microstructures on the Corrosion Behavior of Micro-Alloyed Steels in Unbuffered 3.5 Wt% NaCl Saturated with CO2</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Lawrence%20I.%20Onyeji">Lawrence I. Onyeji</a>, <a href="https://publications.waset.org/abstracts/search?q=Girish%20M.%20Kale"> Girish M. Kale</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20Bijan%20Kermani"> M. Bijan Kermani</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Corrosion problem which exists in every stage of oil and gas production has been a great challenge to the operators in the industry. The conventional carbon steel with all its inherent advantages has been adjudged susceptible to the aggressive corrosion environment of oilfield. This has aroused increased interest in the use of micro alloyed steels for oil and gas production and transportation. The corrosion behavior of three commercially supplied micro alloyed steels designated as A, B, and C have been investigated with API 5L X65 as reference samples. Electrochemical corrosion tests were conducted in an unbuffered 3.5 wt% NaCl solution saturated with CO<sub>2</sub> at 30 <sup>0</sup>C for 24 hours. Pre-corrosion analyses revealed that samples A, B and X65 consist of ferrite-pearlite microstructures but with different grain sizes, shapes and distribution whereas sample C has bainitic microstructure with dispersed acicular ferrites. The results of the electrochemical corrosion tests showed that within the experimental conditions, the corrosion rate of the samples can be ranked as CR<sub>(A)</sub>< CR<sub>(X65)</sub>< CR<sub>(B)</sub>< CR<sub>(C)</sub>. These results are attributed to difference in microstructures of the samples as depicted by ASTM grain size number in accordance with ASTM E112-12 Standard and ferrite-pearlite volume fractions determined by ImageJ Fiji grain size analysis software. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=carbon%20dioxide%20corrosion" title="carbon dioxide corrosion">carbon dioxide corrosion</a>, <a href="https://publications.waset.org/abstracts/search?q=corrosion%20behaviour" title=" corrosion behaviour"> corrosion behaviour</a>, <a href="https://publications.waset.org/abstracts/search?q=micro-alloyed%20steel" title=" micro-alloyed steel"> micro-alloyed steel</a>, <a href="https://publications.waset.org/abstracts/search?q=microstructures" title=" microstructures"> microstructures</a> </p> <a href="https://publications.waset.org/abstracts/57843/comparative-studies-of-the-effects-of-microstructures-on-the-corrosion-behavior-of-micro-alloyed-steels-in-unbuffered-35-wt-nacl-saturated-with-co2" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/57843.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">350</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">6974</span> Study of Corrosion Behavior of Experimental Alloys with Different Levels of Cr and High Levels of Mo Compared to Aisi 444</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ana%20P.%20R.%20N.%20Barroso">Ana P. R. N. Barroso</a>, <a href="https://publications.waset.org/abstracts/search?q=Maur%C3%ADcio%20N.%20Kleinberg"> Maurício N. Kleinberg</a>, <a href="https://publications.waset.org/abstracts/search?q=Frederico%20R.%20Silva"> Frederico R. Silva</a>, <a href="https://publications.waset.org/abstracts/search?q=Rodrigo%20F.%20Guimar%C3%A3es"> Rodrigo F. Guimarães</a>, <a href="https://publications.waset.org/abstracts/search?q=Marcelo%20M.%20V.%20Parente"> Marcelo M. V. Parente</a>, <a href="https://publications.waset.org/abstracts/search?q=Walney%20S.%20Ara%C3%BAjo"> Walney S. Araújo</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The fight against accelerated wear of the equipment used in the oil and gas sector is a challenge for minimizing maintenance costs. Corrosion being one of the main agents of equipment deterioration, we seek alternative materials that exhibit improved corrosion resistance at low cost of production. This study aims to evaluate the corrosion behavior of experimental alloys containing 15% and 17% of chromium (Cr) and 5% of molybdenum (Mo) in comparison with an AISI 444 commercial alloy. Microstructural analyzes were performed on samples of the alloys before and after the electrochemical tests. Two samples of each solubilized alloy were also taken for analysis of the corrosion behavior by testing potentiodynamic polarization (PP) and Electrochemical Impedance Spectroscopy (EIS) with immersion time of 24 hours in electrolytic solution with acidic character. The graphics obtained through electrochemical tests of PP and EIS indicated that among the experimental alloys, the alloy with higher chromium content (17%) had a higher corrosion resistance, confirming the beneficial effect of adding chromium. When comparing the experimental alloys with the AISI 444 commercial alloy, it is observed that the AISI 444 commercial alloy showed superior corrosion resistance to that of the experimental alloys for both assays, PP and EIS. The microstructural analyzes performed after the PP and EIS tests confirmed the results previously described. These results suggest that the addition of these levels of molybdenum did not favor the electrochemical behavior of experimental ferritic alloys for the electrolytic medium studied. <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=molybdenum" title=" molybdenum"> molybdenum</a>, <a href="https://publications.waset.org/abstracts/search?q=electrochemical%20tests" title=" electrochemical tests"> electrochemical tests</a>, <a href="https://publications.waset.org/abstracts/search?q=experimental%20alloys" title=" experimental alloys"> experimental alloys</a> </p> <a href="https://publications.waset.org/abstracts/21411/study-of-corrosion-behavior-of-experimental-alloys-with-different-levels-of-cr-and-high-levels-of-mo-compared-to-aisi-444" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/21411.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">573</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">6973</span> Study of Magnetic Properties on the Corrosion Behavior and Influence of Temperature in Permanent Magnet (Nd-Fe-B) Used in PMSM</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=N.%20Yogal">N. Yogal</a>, <a href="https://publications.waset.org/abstracts/search?q=C.%20Lehrmann"> C. Lehrmann</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The use of Permanent magnet (PM) is increasing in the Permanent magnet synchronous machines (PMSM) to fulfill the requirement of high efficiency machines in modern industry. PMSM is widely used in industrial application, wind power plant and automotive industry. Since the PMSM are used in different environment condition, the long-term effect of NdFeB-based magnets at high temperatures and corrosion behavior has to be studied due to irreversible loss of magnetic properties. In this paper, the effect of magnetic properties due to corrosion and increasing temperature in the climatic chamber has been presented. The magnetic moment and magnetic field of the magnet were studied experimentally. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=permanent%20magnet%20%28PM%29" title="permanent magnet (PM)">permanent magnet (PM)</a>, <a href="https://publications.waset.org/abstracts/search?q=NdFeB" title=" NdFeB"> NdFeB</a>, <a href="https://publications.waset.org/abstracts/search?q=corrosion%20behavior" title=" corrosion behavior"> corrosion behavior</a>, <a href="https://publications.waset.org/abstracts/search?q=temperature%20effect" title=" temperature effect"> temperature effect</a>, <a href="https://publications.waset.org/abstracts/search?q=Permanent%20magnet%20synchronous%20machine%20%28PMSM%29" title=" Permanent magnet synchronous machine (PMSM)"> Permanent magnet synchronous machine (PMSM)</a> </p> <a href="https://publications.waset.org/abstracts/16482/study-of-magnetic-properties-on-the-corrosion-behavior-and-influence-of-temperature-in-permanent-magnet-nd-fe-b-used-in-pmsm" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/16482.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">395</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">6972</span> Magnesium Alloys for Biomedical Applications Processed by Severe Plastic Deformation</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Mariana%20P.%20Medeiros">Mariana P. Medeiros</a>, <a href="https://publications.waset.org/abstracts/search?q=Amanda%20P.%20Carvallo"> Amanda P. Carvallo</a>, <a href="https://publications.waset.org/abstracts/search?q=Augusta%20Isaac"> Augusta Isaac</a>, <a href="https://publications.waset.org/abstracts/search?q=Milos%20Janecek"> Milos Janecek</a>, <a href="https://publications.waset.org/abstracts/search?q=Peter%20Minarik"> Peter Minarik</a>, <a href="https://publications.waset.org/abstracts/search?q=Mayerling%20Martinez%20Celis"> Mayerling Martinez Celis</a>, <a href="https://publications.waset.org/abstracts/search?q=Roberto.%20R.%20Figueiredo"> Roberto. R. Figueiredo</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The effect of high pressure torsion processing on mechanical properties and corrosion behavior of pure magnesium and Mg-Zn, Mg-Zn-Ca, Mg-Li-Y, and Mg-Y-RE alloys is investigated. Micro-tomography and SEM characterization are used to estimate corrosion rate and evaluate non-uniform corrosion features. The results show the severe plastic deformation processing improves the strength of all magnesium alloys, but deformation localization can take place in the Mg-Zn-Ca and Mg-Y-RE alloys. The occurrence of deformation localization is associated with low strain rate sensitivity in these alloys and with severe corrosion localization. Pure magnesium and Mg-Zn and Mg-Li-Y alloys display good corrosion resistance with low corrosion rate and maintained integrity after 28 days of immersion in Hank`s solution. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=magnesium%20alloys" title="magnesium alloys">magnesium alloys</a>, <a href="https://publications.waset.org/abstracts/search?q=severe%20plastic%20deformation" title=" severe plastic deformation"> severe plastic deformation</a>, <a href="https://publications.waset.org/abstracts/search?q=corrosion" title=" corrosion"> corrosion</a>, <a href="https://publications.waset.org/abstracts/search?q=biodegradable%20alloys" title=" biodegradable alloys"> biodegradable alloys</a> </p> <a href="https://publications.waset.org/abstracts/157866/magnesium-alloys-for-biomedical-applications-processed-by-severe-plastic-deformation" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/157866.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">112</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">6971</span> Electrochemical Corrosion Behavior of New Developed Titanium Alloys in Ringer’s Solution</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Yasser%20M.%20Abd-elrhman">Yasser M. Abd-elrhman</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohamed%20A.%20Gepreel"> Mohamed A. Gepreel</a>, <a href="https://publications.waset.org/abstracts/search?q=Kiochi%20Nakamura"> Kiochi Nakamura</a>, <a href="https://publications.waset.org/abstracts/search?q=Ahmed%20Abd%20El-Moneim"> Ahmed Abd El-Moneim</a>, <a href="https://publications.waset.org/abstracts/search?q=Sengo%20Kobayashi"> Sengo Kobayashi</a>, <a href="https://publications.waset.org/abstracts/search?q=Mervat%20M.%20Ibrahim"> Mervat M. Ibrahim</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Titanium alloys are known as highly bio compatible metallic materials due to their high strength, low elastic modulus, and high corrosion resistance in biological media. Besides other important material features, the corrosion parameters and corrosion products are responsible for limiting the biological and chemical bio compatibility of metallic materials that produce undesirable reactions in implant-adjacent and/or more distant tissues. Electrochemical corrosion behaviors of novel beta titanium alloys, Ti-4.7Mo-4.5Fe, Ti-3Mo-0.5Fe, and Ti-2Mo-0.5Fe were characterized in naturally aerated Ringer’s solution at room temperature compared with common used biomedical titanium alloy, Ti-6Al-4V. The corrosion resistance of titanium alloys were investigated through open circuit potential (OCP), potentiodynamic polarization measurements and optical microscope (OM). A high corrosion resistance was obtained for all alloys due to the stable passive film formed on their surfaces. The new present alloys are promising metallic biomaterials for the future, owing to their very low elastic modulus and good corrosion resistance capabilities. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=titanium%20alloys" title="titanium alloys">titanium alloys</a>, <a href="https://publications.waset.org/abstracts/search?q=corrosion%20resistance" title=" corrosion resistance"> corrosion resistance</a>, <a href="https://publications.waset.org/abstracts/search?q=Ringer%E2%80%99s%20solution" title=" Ringer’s solution"> Ringer’s solution</a>, <a href="https://publications.waset.org/abstracts/search?q=electrochemical%20corrosion" title=" electrochemical corrosion"> electrochemical corrosion</a> </p> <a href="https://publications.waset.org/abstracts/19503/electrochemical-corrosion-behavior-of-new-developed-titanium-alloys-in-ringers-solution" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/19503.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">659</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">6970</span> Evaluation of Corrosion Property of Aluminium-Zirconium Dioxide (AlZrO2) Nanocomposites</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=M.%20Ramachandra">M. Ramachandra</a>, <a href="https://publications.waset.org/abstracts/search?q=G.%20Dilip%20Maruthi"> G. Dilip Maruthi</a>, <a href="https://publications.waset.org/abstracts/search?q=R.%20Rashmi"> R. Rashmi</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This paper aims to study the corrosion property of aluminum matrix nanocomposite of an aluminum alloy (Al-6061) reinforced with zirconium dioxide (ZrO<sub>2</sub>) particles. The zirconium dioxide particles are synthesized by solution combustion method. The nanocomposite materials are prepared by mechanical stir casting method, varying the percentage of n-ZrO<sub>2</sub> (2.5%, 5% and 7.5% by weight). The corrosion behavior of base metal (Al-6061) and Al/ZrO<sub>2</sub> nanocomposite in seawater (3.5% NaCl solution) is measured using the potential control method. The corrosion rate is evaluated by Tafel extrapolation technique. The corrosion potential increases with the increase in wt.% of n-ZrO<sub>2</sub> in the nanocomposite which means the decrease in corrosion rate. It is found that on addition of n-ZrO2 particles to the aluminum matrix, the corrosion rate has decreased compared to the base metal. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Al6061%20alloy" title="Al6061 alloy">Al6061 alloy</a>, <a href="https://publications.waset.org/abstracts/search?q=corrosion" title=" corrosion"> corrosion</a>, <a href="https://publications.waset.org/abstracts/search?q=solution" title=" solution"> solution</a>, <a href="https://publications.waset.org/abstracts/search?q=stir%20casting" title=" stir casting"> stir casting</a>, <a href="https://publications.waset.org/abstracts/search?q=combustion" title=" combustion"> combustion</a>, <a href="https://publications.waset.org/abstracts/search?q=potentiostat" title=" potentiostat"> potentiostat</a>, <a href="https://publications.waset.org/abstracts/search?q=zirconium%20dioxide" title=" zirconium dioxide"> zirconium dioxide</a> </p> <a href="https://publications.waset.org/abstracts/56412/evaluation-of-corrosion-property-of-aluminium-zirconium-dioxide-alzro2-nanocomposites" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/56412.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">407</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">6969</span> Effect of Aging on Hardness and Corrosion Resistance of WE43 Magnesium Alloy</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ziya%20Esen">Ziya Esen</a>, <a href="https://publications.waset.org/abstracts/search?q=%C3%96zg%C3%BCr%20Duygulu"> Özgür Duygulu</a>, <a href="https://publications.waset.org/abstracts/search?q=Nazl%C4%B1%20S.%20B%C3%BCy%C3%BCkatak"> Nazlı S. Büyükatak</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This study investigates the effects of aging heat treatment on corrosion resistance and mechanical properties of WE43 Magnesium alloy. The heat treatment of alloys was conducted by solutionizing at 525oC for 16 h, followed by aging at 190, 210 and 230oC for up to 48 h. The type and the size of precipitates formed upon aging have influenced both the mechanical properties and corrosion behavior of the alloy. Solutionized alloy displayed the worst corrosion resistance in simulated body fluid, while peak hardness and the best corrosion resistance were observed in the alloy aged at 210oC for 24 h as a result of β’ precipitate formation. Longer aging duration at 210oC decreased the corrosion rate due to the coarsening of the precipitates and formation of precipitate-free zones. The increased corrosion resistance of the peak aged samples was attributed to the slowing down effect of the Mg(OH)₂/MgO corrosion layer by the pinning effect of β’-precipitates. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=WE43%20magnesium%20alloy" title="WE43 magnesium alloy">WE43 magnesium alloy</a>, <a href="https://publications.waset.org/abstracts/search?q=simulated%20body%20fluid" title=" simulated body fluid"> simulated body fluid</a>, <a href="https://publications.waset.org/abstracts/search?q=corrosion" title=" corrosion"> corrosion</a>, <a href="https://publications.waset.org/abstracts/search?q=mechanical%20properties" title=" mechanical properties"> mechanical properties</a> </p> <a href="https://publications.waset.org/abstracts/186918/effect-of-aging-on-hardness-and-corrosion-resistance-of-we43-magnesium-alloy" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/186918.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">7</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">6968</span> Corrosion Behavior of Different Electroplated Systems Coated With Physical Vapor Deposition</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Jorge%20Santos">Jorge Santos</a>, <a href="https://publications.waset.org/abstracts/search?q=Ana%20V.%20Gir%C3%A3o"> Ana V. Girão</a>, <a href="https://publications.waset.org/abstracts/search?q=F.%20J.%20Oliveira"> F. J. Oliveira</a>, <a href="https://publications.waset.org/abstracts/search?q=Alexandre%20C.%20Bastos"> Alexandre C. Bastos</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Protective or decorative coatings containing hexavalent chromium compounds are still used on metal and plastic parts. These hexavalent chromium compounds represent a risk to living beings and the environment, and, for this reason, there is a great need to investigate alternatives. Physical Vapor Deposition (PVD) is an environmentally friendly process that allows the deposition of wear and corrosion resistant thin films with excellent optical properties. However, PVD thin films are porous and if deposited onto low corrosion resistant substrates, lead to a degradation risk. The corrosion behavior of chromium-free electroplated coating systems finished with magnetron sputtered PVD thin films was investigated in this work. The electroplated systems consisted of distinct nickel layers deposited on top of a copper interlayer on acrylonitrile butadiene styrene (ABS) plates. Electrochemical and corrosion evaluation was conducted by electrochemical impedance spectroscopy and polarization curves on the different electroplated coating systems, with and without PVD thin film on top. The results show that the corrosion resistance is lower for the electroplated coating systems finished with PVD thin film for extended exposure periods when compared to those without the PVD overlay. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=PVD" title="PVD">PVD</a>, <a href="https://publications.waset.org/abstracts/search?q=electroplating" title=" electroplating"> electroplating</a>, <a href="https://publications.waset.org/abstracts/search?q=corrosion" title=" corrosion"> corrosion</a>, <a href="https://publications.waset.org/abstracts/search?q=thin%20film" title=" thin film"> thin film</a> </p> <a href="https://publications.waset.org/abstracts/153146/corrosion-behavior-of-different-electroplated-systems-coated-with-physical-vapor-deposition" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/153146.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">147</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">6967</span> Corrosion Evaluation of Zinc Coating Prepared by Two Types of Electric Currents</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=M.%20Sajjadnejad">M. Sajjadnejad</a>, <a href="https://publications.waset.org/abstracts/search?q=H.%20Karimi%20Abadeh"> H. Karimi Abadeh</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this research, zinc coatings were fabricated by electroplating process in a sulfate solution under direct and pulse current conditions. In direct and pulse current conditions, effect of maximum current was investigated on the coating properties. Also a comparison was made between the obtained coatings under direct and pulse current. Morphology of the coatings was investigated by scanning electron microscopy (SEM). Corrosion behavior of the coatings was investigated by potentiodynamic polarization test. In pulse current conditions, the effect of pulse frequency and duty cycle was also studied. The effect of these conditions and parameters were also investigated on morphology and corrosion behavior. All of DC plated coatings are showing a distinct passivation area in -1 to -0.4 V range. Pulsed current coatings possessed a higher corrosion resistance. The results showed that current density is the most important factor regarding the fabrication process. Furthermore, a rise in duty cycle deteriorated corrosion resistance of coatings. Pulsed plated coatings performed almost 10 times better than DC plated coatings. <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=duty%20cycle" title=" duty cycle"> duty cycle</a>, <a href="https://publications.waset.org/abstracts/search?q=pulsed%20current" title=" pulsed current"> pulsed current</a>, <a href="https://publications.waset.org/abstracts/search?q=zinc" title=" zinc"> zinc</a> </p> <a href="https://publications.waset.org/abstracts/111558/corrosion-evaluation-of-zinc-coating-prepared-by-two-types-of-electric-currents" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/111558.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">122</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">6966</span> Corrosion and Microstructural Properties of Vanadium-Microalloyed High-Manganese Steels</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Temitope%20Olumide%20Olugbade">Temitope Olumide Olugbade</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Low resistance and delayed fracture to corrosion, especially in harsh environmental conditions, often limit the wide application of high-manganese (high-Mn) steels. To address this issue, the present work investigates the influence of microalloying on the corrosion properties of high-Mn steels. Microalloyed and base high-Mn steels were synthesized through an arc melting process under an argon atmosphere. To generate different microstructures, the temperature and duration were varied via thermal homogenization treatments. The electrochemical impedance spectroscopy (EIS) and potentiodynamic polarization techniques were used to determine the corrosion properties in 0.6 M NaCl aqueous solution at room temperature. The relationship between the microstructures and corrosion properties was investigated via Scanning Kelvin Probe Microscopy (SKPFM), energy dispersive X-ray spectroscopy (EDX), and Scanning electron microscopy (SEM) techniques. The local corrosion properties were investigated via in situ atomic force spectroscopy (AFM), considering the homogenization treatments. The results indicate that microalloying is a successful technique for enhancing the corrosion behavior of high-Mn steels. Compared to other alloying elements, Vanadium has shown improvement in corrosion properties for both general and local corrosion in chloride environments. <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=high-manganese%20steel" title=" high-manganese steel"> high-manganese steel</a>, <a href="https://publications.waset.org/abstracts/search?q=homogenization" title=" homogenization"> homogenization</a>, <a href="https://publications.waset.org/abstracts/search?q=microalloying" title=" microalloying"> microalloying</a>, <a href="https://publications.waset.org/abstracts/search?q=vanadium" title=" vanadium"> vanadium</a> </p> <a href="https://publications.waset.org/abstracts/174119/corrosion-and-microstructural-properties-of-vanadium-microalloyed-high-manganese-steels" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/174119.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">94</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">6965</span> Effect of Al2O3 Nanoparticles on Corrosion Behavior of Aluminum Alloy Fabricated by Powder Metallurgy </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Muna%20Khethier%20Abbass">Muna Khethier Abbass</a>, <a href="https://publications.waset.org/abstracts/search?q=Bassma%20Finner%20Sultan"> Bassma Finner Sultan</a> </p> <p class="card-text"><strong>Abstract:</strong></p> In this research the effect of Al2O3 nanoparticles on corrosion behavior of aluminum base alloy(Al-4.5wt%Cu-1.5wt%Mg) has been investigated. Nanocomopsites reinforced with variable contents of 1,3 & 5wt% of Al2O3 nanoparticles were fabricated using powder metallurgy. All samples were prepared from the base alloy powders under the best powder metallurgy processing conditions of 6 hr of mixing time , 450 MPa of compaction pressure and 560°C of sintering temperature. Density and micro hardness measurements, and electrochemical corrosion tests are performed for all prepared samples in 3.5wt%NaCl solution at room temperature using potentiostate instrument. It has been found that density and micro hardness of the nanocomposite increase with increasing of wt% Al2O3 nanoparticles to Al matrix. It was found from Tafel extrapolation method that corrosion rates of the nanocomposites reinforced with alumina nanoparticles were lower than that of base alloy. From results of corrosion test by potentiodynamic cyclic polarization method, it was found the pitting corrosion resistance improves with adding of Al2O3 nanoparticles . It was noticed that the pits disappear and the hysteresis loop disappears also from anodic polarization curve. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=powder%20metallurgy" title="powder metallurgy">powder metallurgy</a>, <a href="https://publications.waset.org/abstracts/search?q=nano%20composites" title=" nano composites"> nano composites</a>, <a href="https://publications.waset.org/abstracts/search?q=Al-Cu-Mg%20alloy" title=" Al-Cu-Mg alloy"> Al-Cu-Mg alloy</a>, <a href="https://publications.waset.org/abstracts/search?q=electrochemical%20corrosion" title=" electrochemical corrosion"> electrochemical corrosion</a> </p> <a href="https://publications.waset.org/abstracts/68464/effect-of-al2o3-nanoparticles-on-corrosion-behavior-of-aluminum-alloy-fabricated-by-powder-metallurgy" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/68464.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">461</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">6964</span> Green Corrosion Inhibitor from Essential Oil of Linseed for Aluminum in Na2CO3 Solution</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=L.%20Bazzi">L. Bazzi</a>, <a href="https://publications.waset.org/abstracts/search?q=E.%20Azzouyahar"> E. Azzouyahar</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20Lamiri"> A. Lamiri</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20Essahli"> M. Essahli</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Effect of addition of linseed oil (LSO) on the corrosion of aluminium in 0.1 M Na2CO3 has been studied by weight loss measurements, potentiodynamic polarization and Electrochemical Impedance Spectroscopy (EIS) measurements. The inhibition efficiency was found to increase with inhibitor content to attain 70% for LSO at 4g/L. Inhibition efficiency E (%) obtained from the various methods is in good agreement. The temperature effect on the corrosion behavior of aluminium was studied by potentiodynamic technique in the range from 298 to 308 K. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=aluminum" title="aluminum">aluminum</a>, <a href="https://publications.waset.org/abstracts/search?q=corrosion" title=" corrosion"> corrosion</a>, <a href="https://publications.waset.org/abstracts/search?q=green%20inhibitors" title=" green inhibitors"> green inhibitors</a>, <a href="https://publications.waset.org/abstracts/search?q=carbonate" title=" carbonate"> carbonate</a>, <a href="https://publications.waset.org/abstracts/search?q=linseed%20oil" title=" linseed oil"> linseed oil</a> </p> <a href="https://publications.waset.org/abstracts/17554/green-corrosion-inhibitor-from-essential-oil-of-linseed-for-aluminum-in-na2co3-solution" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/17554.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">360</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">6963</span> Corrosion Behavior of Fe-Ni-Cr and Zr Alloys in Supercritical Water Reactors</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Igor%20Svishchev">Igor Svishchev</a>, <a href="https://publications.waset.org/abstracts/search?q=Kashif%20Choudhry"> Kashif Choudhry</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Progress in advanced energy technologies is not feasible without understanding how engineering materials perform under extreme environmental conditions. The corrosion behaviour of Fe-Ni-Cr and Zr alloys has been systematically examined under high-temperature and supercritical water flow conditions. The changes in elemental release rate and dissolved gas concentration provide valuable insights into the mechanism of passivation by forming oxide films. A non-intrusive method for monitoring the extent of surface oxidation based on hydrogen release rate has been developed. This approach can be used for the on-line monitoring corrosion behavior of reactor materials without the need to interrupt the flow and remove corrosion coupons. Surface catalysed thermochemical reactions may generate sufficient hydrogen to have an effect on the accumulation of oxidizing species generated by radiolytic processes in the heat transport systems of the supercritical water cooled nuclear reactor. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=high-temperature%20corrosion" title="high-temperature corrosion">high-temperature corrosion</a>, <a href="https://publications.waset.org/abstracts/search?q=non-intrusive%20monitoring" title=" non-intrusive monitoring"> non-intrusive monitoring</a>, <a href="https://publications.waset.org/abstracts/search?q=reactor%20materials" title=" reactor materials"> reactor materials</a>, <a href="https://publications.waset.org/abstracts/search?q=supercritical%20water" title=" supercritical water"> supercritical water</a> </p> <a href="https://publications.waset.org/abstracts/128855/corrosion-behavior-of-fe-ni-cr-and-zr-alloys-in-supercritical-water-reactors" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/128855.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">135</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">6962</span> The Effect of the Proportion of Carbon on the Corrosion Rate of Carbon-Steel</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Abdulmagid%20A.%20Khattabi">Abdulmagid A. Khattabi</a>, <a href="https://publications.waset.org/abstracts/search?q=Ahmed%20A.%20Hablous"> Ahmed A. Hablous</a>, <a href="https://publications.waset.org/abstracts/search?q=Mofied%20M.%20Elnemry"> Mofied M. Elnemry</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The carbon steel is of one of the most common mineral materials used in engineering and industrial applications in order to have access to the required mechanical properties, especially after the change of carbon ratio, but this may lead to stimulate corrosion. It has been used in models of solids with different carbon ratios such as 0.05% C, 0.2% C, 0.35% C, 0.5% C, and 0.65% C and have been studied using three testing durations which are 4 weeks, 6 weeks, and 8 weeks and among different corrosion environments such as atmosphere, fresh water, and salt water. This research is for the purpose of finding the effect of the carbon content on the corrosion resistance of steels in different corrosion medium by using the weight loss technique as a function of the corrosion resistance. The results that have been obtained through this research shows that a correlation can be made between corrosion rates and steel's carbon content, and the corrosion resistance decreases with the increase in carbon content. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=proportion%20of%20carbon%20in%20the%20steel" title="proportion of carbon in the steel">proportion of carbon in the steel</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=erosion" title=" erosion"> erosion</a>, <a href="https://publications.waset.org/abstracts/search?q=corrosion%20resistance%20in%20carbon-steel" title=" corrosion resistance in carbon-steel"> corrosion resistance in carbon-steel</a> </p> <a href="https://publications.waset.org/abstracts/26940/the-effect-of-the-proportion-of-carbon-on-the-corrosion-rate-of-carbon-steel" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/26940.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">606</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">6961</span> Corrosion Behvaior of CS1018 in Various CO2 Capture Solvents</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Aida%20Rafat">Aida Rafat</a>, <a href="https://publications.waset.org/abstracts/search?q=Ramazan%20Kahraman"> Ramazan Kahraman</a>, <a href="https://publications.waset.org/abstracts/search?q=Mert%20Atilhan"> Mert Atilhan</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The aggressive corrosion behavior of conventional amine solvents is one of main barriers against large scale commerizaliation of amine absorption process for carbon capture application. Novel CO2 absorbents that exhibit minimal corrosivity against operation conditions are essential to lower corrosion damage and control and ensure more robustness in the capture plant. This work investigated corrosion behavior of carbon steel CS1018 in various CO2 absrobent solvents. The tested solvents included the classical amines MEA, DEA and MDEA, piperazine activated solvents MEA/PZ, MDEA/PZ and MEA/MDEA/PZ as well as mixtures of MEA and Room Temperature Ionic Liquids RTIL, namely MEA/[C4MIM][BF4] and MEA/[C4MIM][Otf]. Electrochemical polarization technique was used to determine the system corrosiveness in terms of corrosion rate and polarization behavior. The process parameters of interest were CO2 loading and solution temperature. Electrochemical resulted showed corrosivity order of classical amines at 40°C is MDEA> MEA > DEA wherase at 80°C corrosivity ranking changes to MEA > DEA > MDEA. Corrosivity rankings were mainly governed by CO2 absorption capacity at the test temperature. Corrosivity ranking for activated amines at 80°C was MEA/PZ > MDEA/PZ > MEA/MDEA/PZ. Piperazine addition seemed to have a dual advanatge in terms of enhancing CO2 absorption capacity as well as nullifying corrosion. For MEA/RTIL mixtures, the preliminary results showed that the partial repalcement of aqueous phase in MEA solution by the more stable nonvolatile RTIL solvents reduced corrosion rates considerably. <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=amines" title=" amines"> amines</a>, <a href="https://publications.waset.org/abstracts/search?q=CO2%20capture" title=" CO2 capture"> CO2 capture</a>, <a href="https://publications.waset.org/abstracts/search?q=piperazine" title=" piperazine"> piperazine</a>, <a href="https://publications.waset.org/abstracts/search?q=ionic%20liquids" title=" ionic liquids"> ionic liquids</a> </p> <a href="https://publications.waset.org/abstracts/18686/corrosion-behvaior-of-cs1018-in-various-co2-capture-solvents" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/18686.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">460</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">6960</span> Effect of Micaceous Iron Oxide and Nanocrystalline Al on the Electrochemical Behavior of Aliphatic Amine Cured Epoxy Coating</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Asiful%20H.%20Seikh">Asiful H. Seikh</a>, <a href="https://publications.waset.org/abstracts/search?q=Jabair%20A.%20Mohammed"> Jabair A. Mohammed</a>, <a href="https://publications.waset.org/abstracts/search?q=Ubair%20A.%20Samad"> Ubair A. Samad</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohammad%20A.%20Alam"> Mohammad A. Alam</a>, <a href="https://publications.waset.org/abstracts/search?q=Saeed%20M.%20Al-Zahrani"> Saeed M. Al-Zahrani</a>, <a href="https://publications.waset.org/abstracts/search?q=El-Sayed%20M.%20Sherif"> El-Sayed M. Sherif</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Three coating formulations were fabricated by incorporating different percentages of MIO (micaceous iron oxide ) (1, 2, and wt%) with ball-milled nanocrystalline Al (2 wt%) particles, which was optimized earlier. These coatings were characterized by means of different methods, namely, SEM, TGA, pendulum hardness, scratch test, and nano-indentation. The EIS measurements were carried out to report the effect of adding MIO powder in fabricated coatings on their corrosion behavior in 3.5 wt% NaCl solutions. In order to report the effect of immersion time on the corrosion and degradation of the prepared coatings, the EIS data were also acquired after various exposure periods of time, i.e., 1 h, 7 d, 14 d, 21 d, and 30 d in the test chloride solution. It has been found that the obtained EIS data for the fabricated coatings proved that the presence of 2% MIO provided the highest corrosion resistance amongst all coatings and that effect was recorded after all immersion periods of time. But, the MIO-incorporated coatings have less corrosion resistance than Al based epoxy coatings. It was also shown that with prolonged immersion, the resistance to corrosion declined after 7d, then with a longer period of immersion, i.e. 14 d, 21 d, and 30 d increases the resistance to corrosion by forming oxide products on the coatings surface. The results obtained from both mechanical and electrochemical testing confirmed that the fabricated coating with 2 wt% Al exhibited better hardness and higher resistance to corrosion as compared to coatings with 1 wt% Al and 3 wt% Al. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=epoxy%20coatings" title="epoxy coatings">epoxy coatings</a>, <a href="https://publications.waset.org/abstracts/search?q=nanomaterials" title=" nanomaterials"> nanomaterials</a>, <a href="https://publications.waset.org/abstracts/search?q=corrosion%20resistance" title=" corrosion resistance"> corrosion resistance</a>, <a href="https://publications.waset.org/abstracts/search?q=EIS" title=" EIS"> EIS</a>, <a href="https://publications.waset.org/abstracts/search?q=nanoindentation" title=" nanoindentation"> nanoindentation</a> </p> <a href="https://publications.waset.org/abstracts/183317/effect-of-micaceous-iron-oxide-and-nanocrystalline-al-on-the-electrochemical-behavior-of-aliphatic-amine-cured-epoxy-coating" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/183317.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">72</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">6959</span> Studies of the Corrosion Kinetics of Metal Alloys in Stagnant Simulated Seawater Environment</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=G.%20Kabir">G. Kabir</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20M.%20Mohammed"> A. M. Mohammed</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20A.%20Bawa"> M. A. Bawa</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The paper presents corrosion behaviors of Naval Brass, aluminum alloy and carbon steel in simulated seawater under stagnant conditions. The behaviors were characterized on the variation of chloride ions concentration in the range of 3.0wt% and 3.5wt% and exposure time. The weight loss coupon-method immersion technique was employed. The weight loss for the various alloys was measured. Based on the obtained results, the corrosion rate was determined. It was found that the corrosion rates of the various alloys are related to the chloride ions concentrations, exposure time and kinetics of passive film formation of the various alloys. Carbon steel, suffers corrosion many folds more than Naval Brass. This indicated that the alloy exhibited relatively strong resistance to corrosion in the exposure environment of the seawater. Whereas, the aluminum alloy exhibited an excellent and beneficial resistance to corrosion more than the Naval Brass studied. Despite the prohibitive cost, Naval Brass and aluminum alloy, indicated to have beneficial corrosion behavior that can offer wide range of application in seashore operations. The corrosion kinetics parameters indicated that the corrosion reaction is limited by diffusion mass transfer of the corrosion reaction elements and not by reaction controlled. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=alloys" title="alloys">alloys</a>, <a href="https://publications.waset.org/abstracts/search?q=chloride%20ions%20concentration" title=" chloride ions concentration"> chloride ions concentration</a>, <a href="https://publications.waset.org/abstracts/search?q=corrosion%20kinetics" title=" corrosion kinetics"> corrosion kinetics</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=diffusion%20mass%20transfer" title=" diffusion mass transfer"> diffusion mass transfer</a>, <a href="https://publications.waset.org/abstracts/search?q=exposure%20time" title=" exposure time"> exposure time</a>, <a href="https://publications.waset.org/abstracts/search?q=seawater" title=" seawater"> seawater</a>, <a href="https://publications.waset.org/abstracts/search?q=weight%20loss" title=" weight loss"> weight loss</a> </p> <a href="https://publications.waset.org/abstracts/5524/studies-of-the-corrosion-kinetics-of-metal-alloys-in-stagnant-simulated-seawater-environment" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/5524.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">302</span> </span> </div> </div> <ul class="pagination"> <li class="page-item disabled"><span class="page-link">&lsaquo;</span></li> <li class="page-item active"><span class="page-link">1</span></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=corrosion%20behavior&page=2">2</a></li> <li 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