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New single crystal superalloys – overview and update | MATEC Web of Conferences
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Since introduction of single crystal casting technology, SX alloy development has focused on increased temperature capability, and major improvements in alloy performance have been associated with the introduction of new alloying elements, including rhenium (Re) and ruthenium (Ru). 3% Re-containing second generation alloys have seen the greatest market utilization and have become the benchmark alloys for comparing new alloy developments. However, Re and Ru are rare elements with limited production/availability and corresponding high costs. This has resulted in significant escalation of SX alloy costs, resulting in much interest in the development of improved SX superalloys with lower Re or no Re content compared to second generation alloys. Cannon-Muskegon<sup><i>®<i/><sup/> has developed two new SX superalloys: 1.5% Re CMSX<sup><i>®<i/><sup/>-8 alloy and CMSX<sup><i>®<i/><sup/>-7 alloy, which contains no Re, as alternatives to first and second generation alloys for applications which require slightly less ultra high temperature capability compared to current alloys. This paper provides an overview of development and characterization of these SX alloys, including an update on recent results."> <meta name="citation_reference" content="D.J. Frasier, et al., “Process and Alloy Optimization for CMSX-4® Superalloy Single Crystal Airfoils,” (Cost 501/505 High Temp Materials for Power Eng 1990 Conf., Liege, Belgium, September, 1990)"> <meta name="citation_reference" content="citation_author=J.H. 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</nav> <div id="system-message-container"> </div> <div class="flexme flexme-article"> <div class="article-content"> <div> <div class="special_article gold">Open Access</div> </div> <div class="summary " > <table> <tr> <th valign="top"> Issue </th> <td width="10"></td> <td> <div> MATEC Web of Conferences </div> <div><strong>Volume </strong>14, 2014 </div> EUROSUPERALLOYS 2014 – 2<sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">nd</sup> European Symposium on Superalloys and their Applications </td> <tr><td colspan="3" ></td></tr> <tr><td colspan="3" class="sep_issue"></td></tr> </tr> <tr> <th> Article Number </th> <td></td> <td>17002</td> </tr> <tr> <th> Number of page(s) </th> <td></td> <td>6</td> </tr> <tr> <th>Section</th> <td></td> <td>Posters: Alloy Development I: Ni Based Alloys</td> </tr> <tr> <th>DOI</th> <td></td> <td> <a href="https://doi.org/10.1051/matecconf/20141417002"> https://doi.org/10.1051/matecconf/20141417002 </a> </td> </tr> <tr> <th>Published online</th> <td></td> <td> 29 August 2014 </td> </tr> </table> </div> <div id="article"> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"> <div id="contenu-min"> <div id="head">MATEC Web of Conferences <b>14</b>, 17002 (2014)<h2 class="title">New single crystal superalloys – overview and update</h2> <div class="article-authors"><p class="bold"><span id="matecconf_eurosuperalloys14_17002-author-1" data-url="/component/author/?dkey=10.1051/matecconf/20141417002&n=1" class="author">Jacqueline Wahl</span><sup>a</sup> and <span id="matecconf_eurosuperalloys14_17002-author-2" data-url="/component/author/?dkey=10.1051/matecconf/20141417002&n=2" class="author">Ken Harris</span></p></div> <p class="aff"> Cannon-Muskegon Corporation [A PCC Company], 2875 Lincoln St, Muskegon, MI 49441, USA <br></p> <p class="corresp"><sup>a</sup> Corresponding author: <a href="mailto:jwahl@canmkg.com">jwahl@canmkg.com</a><br></p> <p class="history"></p> <p class="bold"><a name="abs"></a>Abstract</p> <p>Single crystal (SX) superalloys have wide application in the high pressure turbine section of aero and industrial gas turbine engines due to the unique combination of properties and performance. Since introduction of single crystal casting technology, SX alloy development has focused on increased temperature capability, and major improvements in alloy performance have been associated with the introduction of new alloying elements, including rhenium (Re) and ruthenium (Ru). 3% Re-containing second generation alloys have seen the greatest market utilization and have become the benchmark alloys for comparing new alloy developments. However, Re and Ru are rare elements with limited production/availability and corresponding high costs. This has resulted in significant escalation of SX alloy costs, resulting in much interest in the development of improved SX superalloys with lower Re or no Re content compared to second generation alloys. Cannon-Muskegon<sup><i>®</i></sup> has developed two new SX superalloys: 1.5% Re CMSX<sup><i>®</i></sup>-8 alloy and CMSX<sup><i>®</i></sup>-7 alloy, which contains no Re, as alternatives to first and second generation alloys for applications which require slightly less ultra high temperature capability compared to current alloys. This paper provides an overview of development and characterization of these SX alloys, including an update on recent results.</p> <div class="note"> <hr width="30%" align="left"> <div> <a name=""></a><p>CMSX-4<sup><i>®</i></sup>, CMSX-2<sup><i>®</i></sup>, CMSX-3<sup><i>®</i></sup>, CMSX<sup><i>®</i></sup> and Cannon-Muskegon<sup><i>®</i></sup> are registered trademarks of Cannon-Muskegon Corporation.</p> </div> </div> </div> <p><i>© Owned by the authors, published by EDP Sciences, 2014</i></p> <div class="license"> <p><a rel="license" href="http://creativecommons.org/licenses/by/4.0/"><img alt="Licence Creative Commons" src="https://i.creativecommons.org/l/by/4.0/88x31.png"></a>This is an Open Access article distributed under the terms of the <a href="http://creativecommons.org/licenses/by/4.0/" target="_blank">Creative Commons Attribution License 4.0</a>, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.</p> </div> </div> </div> <div id="metrics-tabs" data-doi="10.1051/matecconf/20141417002" data-edps_ref="matecconf_eurosuperalloys14_17002"> <nav class="toolbar"> <button class="toolbar-item" id="metrics-siq">Current usage metrics</button> <button class="toolbar-item" id="info">About article metrics</button> <button class="toolbar-item" id="return">Return to article</button> </nav> <div class="panel" data-for="metrics-siq"> </div> <div class="panel" data-for="metrics-alm"></div> <div class="panel" data-for="info"> <p>Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.</p> <p>Data correspond to usage on the plateform after 2015. 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