Materials Science Forum Vol. 1097

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underline-begin"> <h1 class="page-name-block-text">Materials Science Forum Vol. 1097</h1> </div> <div class="clearfix title-details"> <div class="papers-block-info col-lg-12"> <div class="row"> <div class="info-row-name normal-text-gray col-md-2 col-sm-3 col-xs-4"> <div class="row"> <p>DOI:</p> </div> </div> <div class="info-row-content semibold-middle-text col-md-10 col-sm-9 col-xs-8"> <div class="row"> <p><a href="https://doi.org/10.4028/v-8WLsdx">https://doi.org/10.4028/v-8WLsdx</a></p> </div> </div> </div> </div> <div id="titleMarcXmlLink" style="display: none" class="papers-block-info col-lg-12"> <div class="row"> <div class="info-row-name normal-text-gray col-md-2 col-sm-3 col-xs-4"> <div class="row"> <p>Export:</p> </div> </div> <div class="info-row-content semibold-middle-text col-md-10 col-sm-9 col-xs-8"> <div class="row"> <p><a href="/MSF.1097/marc.xml">MARCXML</a></p> </div> </div> </div> </div> <div class="papers-block-info col-lg-12"> <div class="row"> <div class="info-row-name normal-text-gray col-md-2 col-sm-3 col-xs-4"> <div class="row"> <p>ToC:</p> </div> </div> <div class="info-row-content semibold-middle-text col-md-10 col-sm-9 col-xs-8"> <div class="row"> <p><a href="/MSF.1097_toc.pdf">Table of Contents</a></p> </div> </div> </div> </div> </div> <div class="volume-tabs"> </div> <div class=""> <div class="volume-papers-page"> <div class="block-search-pagination clearfix"> <div class="block-search-volume"> <input id="paper-search" type="search" placeholder="Search" maxlength="65"> </div> <div class="pagination-container"><ul class="pagination"><li class="active"><span>1</span></li><li><a href="/MSF.1097/2">2</a></li><li class="PagedList-skipToNext"><a href="/MSF.1097/2" rel="next">></a></li></ul></div> </div> <div class="block-volume-title normal-text-gray"> <p> Paper Title <span>Page</span> </p> </div> <div class="item-block"> <div class="item-link"> <a href="/MSF.1097.-1">Preface</a> </div> </div> <div class="item-block"> <div class="item-link"> <a href="/MSF.1097.3">Microstructure and Fatigue Life of Surface Modified PBF-LB Manufactured Maraging Steel</a> </div> <div class="item-link volume-authors"> <div class="semibold-middle-text"> Authors: Timo Rautio, Matias Jaskari, Mikko Hietala, Antti Järvenpää </div> </div> <div id="abstractTextBlock600713" class="volume-info volume-info-text volume-info-description"> Abstract: The present work was aimed at increasing the fatigue life of laser powder bed fusion manufactured maraging steel (MS) using surface modification. Samples were manufactured to investigatethe mechanical properties of the material with two types of heat treatment routes that were both subjected to severe shot peening (SSP). In addition, bending fatigue testing was utilized to reveal theeffect of shot peening (SP) and SSP on fatigue resistance of the MS. Microhardness profiles weremeasured near the surface and electron backscatter diffraction analysis was used for microstructuralanalysis. A thin layer of austenite was noted on the surface making it a softer section, which SP orSSP was able to transform. The fatigue life of the MS was notably icreased by the SP processing andeven greater improvement was achieved with the SSP, which raised the fatigue limit of the materialfrom 200 MPa to nearly 500 MPa. </div> <div> <a data-readmore="{ block: '#abstractTextBlock600713', lines: 2, expandText: '...more', collapseText: '...less' }"></a> </div> <div class="page-number semibold-large-text"> 3 </div> </div> <div class="item-block"> <div class="item-link"> <a href="/MSF.1097.11">Multi Objective Parametric Optimization of Ultrasonic Vibration Assisted Turning on TI6AL4V Alloy</a> </div> <div class="item-link volume-authors"> <div class="semibold-middle-text"> Authors: Vamsi Krishna Pasam, Gamidi Kartheek, Suryachandra Rankireddy, Lingaraju Dumpala </div> </div> <div id="abstractTextBlock600755" class="volume-info volume-info-text volume-info-description"> Abstract: The industrial and engineering applications of Titanium alloys has increased in the recent times particularly in automobile and aerospace industries. Ultrasonic machining of titanium alloys is one of the developments in the recent times to counter the poor machinability characteristics of Ti alloys. In this work, ultrasonic vibration assisted turning is adopted in machining Ti6AL4V with cutting speed, feed rate, depth of cut and amplitude as process parameters. Cutting force, cutting temperature and surface roughness are considered as performance evaluators. The role of each process parameter on each of the responses is evaluated and the optimum parametric combination for multi objective optimization is determined using Grey Relational Analysis. The results are interpreted with respect to tool work contact ratio. It was concluded from the experimental analysis that cutting force, cutting temperature and surface roughness depend on the TWCR which in turn depends on cutting speed and amplitude of vibration. Low TWCR revealed better performance whereas the effect of ultrasonic vibration is found to be reduced with increment in TWCR. In addition, feed rate and depth of cut are found to be significant in effecting the multi response characteristic (GRG). </div> <div> <a data-readmore="{ block: '#abstractTextBlock600755', lines: 2, expandText: '...more', collapseText: '...less' }"></a> </div> <div class="page-number semibold-large-text"> 11 </div> </div> <div class="item-block"> <div class="item-link"> <a href="/MSF.1097.17">The Effect of Laser Heat Treatment and Severe Shot Peening on Laser Powder Bed Fusion Manufactured AISI 316L Stainless Steel</a> </div> <div class="item-link volume-authors"> <div class="semibold-middle-text"> Authors: Mikko Hietala, Timo Rautio, Matias Jaskari, Tejas Gundgire, Antti Järvenpää </div> </div> <div id="abstractTextBlock600926" class="volume-info volume-info-text volume-info-description"> Abstract: In this study the effect of laser heat treatment (LHT) and severe shot peening (SSP) on laser powder bed fusion manufactured AISI 316L stainless steel is investigated. The effect of LHT and SSP on the hardness of the surface of the PBF-LB 316L is studied performing microhardness measurements. Microstructure is evaluated in the EBSD investigation. The residual stresses will be measured to determine the influence of LHT and SSP. The effects of LHT and SSP on tensile and bending fatigue strength will be evaluated. LHT altered the microstructure 200 碌m from the surface. The grain structure on the surface was more ordered and no substructure or local strains were present. Finer grain features adjacent to the sample surface were found, which are most likely caused by effective recrystallization and fast cooling. The grain morphology was left relatively unchanged when SSP was applied on LHT surface. However, local deformation has occurred on the surface, and clear orientation gradient within grains is seen. LHT had no effect on the hardness. SSP increased the surface hardness by 205%. LHT decreased the yield or tensile strength of the PBF-LB 316L. Residual stress measurements showed that SSP induced a high compressive stress in the PBF-LB 316L. LHT and SSP significantly improved the fatigue strength of the PBF-LB manufactured 316L. </div> <div> <a data-readmore="{ block: '#abstractTextBlock600926', lines: 2, expandText: '...more', collapseText: '...less' }"></a> </div> <div class="page-number semibold-large-text"> 17 </div> </div> <div class="item-block"> <div class="item-link"> <a href="/MSF.1097.25">Effect of Roll Load on Microstructure of Roll Cast Al-10%Mg Strip</a> </div> <div class="item-link volume-authors"> <div class="semibold-middle-text"> Authors: Toshio Haga, Kazuki Yamazaki, Hisaki Watari, Shinichi Nishida </div> </div> <div id="abstractTextBlock600797" class="volume-info volume-info-text volume-info-description"> Abstract: The effect of roll load on the microstructure of an Al-10%Mg strip cast using a vertcal-type high-speed twin-roll caster was investigated using roll stop and etching with Weck鈥檚 reagent. Roll stop was adopted to investigate the transformation of the microstructute near the roll bite. Weck鈥檚 reagent was used to visually determine the of the Mg solid-solution content. The roll load was 2, 88, or 420 N/mm and the roll speed was 30 m/min. A band zone formed at the center of the thickness direction for all roll loads. The Mg solid-solution content in the 伪Al in the band zone obtained at a roll load of 2 N/mm was greater than that obtained at roll loads of 88 and 420 N/mm. Recrystalization migh occur in the band zone of the strip at a roll load of 2 N/mm. The Mg solid-solution content in 伪Al near the surface was greater than that inside the strip in the thickness direction. The Mg solid-solution content in 伪Al near surface obtained at a roll load of 2 N/mm was greater than that obtained at roll loads of 88 and 420 N/mm. </div> <div> <a data-readmore="{ block: '#abstractTextBlock600797', lines: 2, expandText: '...more', collapseText: '...less' }"></a> </div> <div class="page-number semibold-large-text"> 25 </div> </div> <div class="item-block"> <div class="item-link"> <a href="/MSF.1097.33">Casting of Thin Aluminum Alloy Wire Using a Single Wheel Caster</a> </div> <div class="item-link volume-authors"> <div class="semibold-middle-text"> Authors: Toshio Haga, Mizuki Makita, Hisaki Watari, Shinichi Nishida </div> </div> <div id="abstractTextBlock600798" class="volume-info volume-info-text volume-info-description"> Abstract: Thin aluminum alloy (Al-4.7%Mg) wire was cast using a single-wheel caster. The target cross-sectional area of the thin wire was less than 20 mm<sup>2</sup>. Use of a copper wheel with a groove and a molten metal ejection nozzle was proposed to cast thin wire. The molten metal ejection nozzle was used to eject a small cross-sectional area of the melt into the narrow groove on the wheel. The relationship among wheel speed, nozzle size, melt ejection speed, stability of the melt on the wheel, and cross-sectional area of the wire was investigated. When the diameter of the nozzle hole was 1.5 or 2 mm, the target was attained. When the nozzle diameter was larger than 3 mm, the cross-sectional area was greater than 20 mm<sup>2</sup>. When the diameter of the nozzle hole was smaller than 1 mm, the melt flow was unstable. A round wire could be cast at wheel speeds ranging from 9 m/min to 14 m/min. The smallest wire cross-sectional area was 4.7 mm<sup>2</sup>. </div> <div> <a data-readmore="{ block: '#abstractTextBlock600798', lines: 2, expandText: '...more', collapseText: '...less' }"></a> </div> <div class="page-number semibold-large-text"> 33 </div> </div> <div class="item-block"> <div class="item-link"> <a href="/MSF.1097.41">Tool Surface Degradation and Adhesion in Aluminium Forging</a> </div> <div class="item-link volume-authors"> <div class="semibold-middle-text"> Authors: Julius Peddinghaus, Hanno Paschke, Kai Brunotte, Bernd-Arno Behrens </div> </div> <div id="abstractTextBlock600812" class="volume-info volume-info-text volume-info-description"> Abstract: Tool surface deterioration is a crucial effect limiting the efficiency of forging processes. Prior work on wear is limited to steel forging while investigations on tribology in aluminium forging are limited to an abstract or simplified level. The presented work aims at contributing to filling this gap with a holistic analytic approach including ball-on-disc (BoD) tests, ring compression (RC) tests and serial forging (SF) tests close to industrial applications in order to gain insights on effects and influences of surface deterioration and evaluate the suitability of different tool coatings. The results show that the primary influence on surface adhesion in aluminium forging is the superposition of surface enlargement and contact pressure of the material flow. Duplex-treated tools with the combination of a nitriding in the first step and an additional coating with chromium nitride (CrN) afterwards show a significant reduction of aluminium adhesion in ring compression and serial forging tests, representing a promising approach to tool life enhancement in forging applications. </div> <div> <a data-readmore="{ block: '#abstractTextBlock600812', lines: 2, expandText: '...more', collapseText: '...less' }"></a> </div> <div class="page-number semibold-large-text"> 41 </div> </div> <div class="item-block"> <div class="item-link"> <a href="/MSF.1097.51">Metal-Containing Diamond-Like Carbon Coatings with Increased Temperature Stability for Wear Protection of Nitrided Hot Forging Dies</a> </div> <div class="item-link volume-authors"> <div class="semibold-middle-text"> Authors: Bernd-Arno Behrens, Günter Bräuer, Kai Brunotte, Julius Peddinghaus, Marcel Rothgänger, Johanna Uhe, Christian Kipp, Martin Siegmund </div> </div> <div id="abstractTextBlock600817" class="volume-info volume-info-text volume-info-description"> Abstract: In cold forging processes, diamond-like carbon (DLC) coatings have become established as a wear protection for forging dies, featuring high hardness and advantageous friction properties. This counteracts the particular critical abrasive tool wear and increases tool life. A major disadvantage of DLC coatings is their low thermal stability. In this study, the influence of metallic elements (niobium, tungsten and chromium) in the treatment atmosphere of the coating process is investigated with the aim of increasing the temperature resistance of the DLC coating and enabling its application as a wear-protection measure for hot forging dies. Preliminary studies were carried out to investigate the influence of different treatment atmospheres on wear-reducing properties such as high hardness and coating adhesion depending on prior nitriding processes. The most promising metal-doped DLC coating, with 30 % tungsten in the treatment atmosphere, was used in serial forging tests. At a blank temperature of 1,200 掳C and a moderate count of 100 forging cycles, wear was reduced by up to 60 % compared to the nitrided reference tool. </div> <div> <a data-readmore="{ block: '#abstractTextBlock600817', lines: 2, expandText: '...more', collapseText: '...less' }"></a> </div> <div class="page-number semibold-large-text"> 51 </div> </div> <div class="item-block"> <div class="item-link"> <a href="/MSF.1097.63">Physical and Luminescence Properties of Europium Ions Doped Barium Tellurite Glass</a> </div> <div class="item-link volume-authors"> <div class="semibold-middle-text"> Authors: Shabnam Qureshi, Purvee Bhardwaj, Ghizal F. Ansari </div> </div> <div id="abstractTextBlock599077" class="volume-info volume-info-text volume-info-description"> Abstract: Barium tellurite (Ba-Te) base glass with and without europium ions have been synthesized by customary melting and quenching method. XRD is done for the verification of the nature of prepared specimens. DSC of the samples was done to determine the glass transition temperature. Density (蟻) of specimens was calculated by Archimedes鈥檚 principle. Other physical parameters as oxygen packing density (OPD), Europium ion concentration (C<sub>L</sub>) in the specimen, molar volume (Vm), intermolecular distance Ri, Polaron radius Rp, europium ion concentration and Molar index of refraction Rm, were computed. In order to study the optical characteristics of the specimens, for instance, coefficient of absorption, forbidden energy gap (Eg), refractive index, and Urbach Energy (E), UV-visible absorption characterizations of Ba-Te glasses was performed in the range of 340-1000 nm. PL characterization has performed for photoluminescence study. </div> <div> <a data-readmore="{ block: '#abstractTextBlock599077', lines: 2, expandText: '...more', collapseText: '...less' }"></a> </div> <div class="page-number semibold-large-text"> 63 </div> </div> <div class="item-block"> <div class="item-link"> <a href="/MSF.1097.71">Physical and Optical Properties of Lead-Tungsten-Tellurite Glasses</a> </div> <div class="item-link volume-authors"> <div class="semibold-middle-text"> Authors: Ghizal F. Ansari, Sunil Patidar, Rajiv Pandey, Rajiv Kumar </div> </div> <div id="abstractTextBlock599078" class="volume-info volume-info-text volume-info-description"> Abstract: By using the melt quenching approach, a number of tellurite-based heavy metal oxide glasses codoped with varied lead oxide (PbO), (80-x)TeO<sub>2</sub>-20%WO<sub>3</sub>-xPbO (x = 5, 10, 15 and 20 mol%) compositions, have been created. By using UV-Vis-IR spectroscopy, forbidden energy gap, Urbach energy, and refractive index were calculated and the contribution of PbO to the glasses structure was investigated. Calculations were also made for physical parameters such as density, molar mass, and oxygen packing density, polaron radius, inter-ionic distance, and molar refraction. The direct and indirect optical band gaps is 3.29 to 3.33 eV and 3.2 to 3.3 eV, respectively. The fact that the nonbridging oxygen ion content rises with increasing PbO content and shifts the band edge to lower frequencies, may be the cause of a drop in the values of the energy band gap Eg. </div> <div> <a data-readmore="{ block: '#abstractTextBlock599078', lines: 2, expandText: '...more', collapseText: '...less' }"></a> </div> <div class="page-number semibold-large-text"> 71 </div> </div> <div class="block-bottom-pagination"> <div class="pager-info"> <p>Showing 1 to 10 of 18 Paper Titles</p> </div> <div class="pagination-container"><ul class="pagination"><li class="active"><span>1</span></li><li><a href="/MSF.1097/2">2</a></li><li class="PagedList-skipToNext"><a href="/MSF.1097/2" rel="next">></a></li></ul></div> </div> </div> </div> </div> </div> </div> </div> <div class="social-icon-popup"> <a href="https://www.facebook.com/Scientific.Net.Ltd/" target="_blank" rel="noopener" title="Scientific.Net"><i class="inline-icon facebook-popup-icon social-icon"></i></a> <a href="https://twitter.com/Scientific_Net/" target="_blank" rel="noopener" title="Scientific.Net"><i class="inline-icon twitter-popup-icon social-icon"></i></a> <a href="https://www.linkedin.com/company/scientificnet/" target="_blank" rel="noopener" title="Scientific.Net"><i class="inline-icon linkedin-popup-icon social-icon"></i></a> </div> </div> <div class="sc-footer"> <div class="footer-fluid"> <div class="container"> <div class="row"> <div class="footer-menu col-md-12 col-sm-12 col-xs-12"> <ul class="list-inline menu-font"> <li><a href="/ForLibraries">For Libraries</a></li> <li><a href="/ForPublication/Paper">For Publication</a></li> <li><a href="/insights" target="_blank">Insights</a></li> <li><a href="/DocuCenter">Downloads</a></li> <li><a href="/Home/AboutUs">About Us</a></li> <li><a href="/PolicyAndEthics/PublishingPolicies">Policy & Ethics</a></li> <li><a href="/Home/Contacts">Contact Us</a></li> <li><a href="/Home/Imprint">Imprint</a></li> <li><a href="/Home/PrivacyPolicy">Privacy Policy</a></li> <li><a href="/Home/Sitemap">Sitemap</a></li> <li><a href="/Conferences">All Conferences</a></li> <li><a href="/special-issues">All Special Issues</a></li> <li><a href="/news/all">All News</a></li> <li><a href="/read-and-publish-agreements">Read & Publish Agreements</a></li> </ul> </div> </div> </div> </div> <div class="line-footer"></div> <div class="footer-fluid"> <div class="container"> <div class="row"> <div class="col-xs-12"> <a href="https://www.facebook.com/Scientific.Net.Ltd/" target="_blank" rel="noopener" title="Scientific.Net"><i class="inline-icon facebook-footer-icon social-icon"></i></a> <a href="https://twitter.com/Scientific_Net/" target="_blank" rel="noopener" title="Scientific.Net"><i class="inline-icon twitter-footer-icon social-icon"></i></a> <a href="https://www.linkedin.com/company/scientificnet/" target="_blank" rel="noopener" title="Scientific.Net"><i class="inline-icon linkedin-footer-icon social-icon"></i></a> </div> </div> </div> </div> <div class="line-footer"></div> <div class="footer-fluid"> <div class="container"> <div class="row"> <div class="col-xs-12 footer-copyright"> <p> © 2024 Trans Tech Publications Ltd. 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Materials Science Forum Vol. 1097 | Scientific.Net