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首页> 外文期刊>Materials Science and Engineering >Microstructures and mechanical properties of high performance Mg-6Gd-3Y-2Nd-0.4Zr alloy by indirect extrusion and aging treatment
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Microstructures and mechanical properties of high performance Mg-6Gd-3Y-2Nd-0.4Zr alloy by indirect extrusion and aging treatment

机译：间接挤压和时效处理的高性能Mg-6Gd-3Y-2Nd-0.4Zr合金的组织和力学性能

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摘要

High strength Mg-6Gd-3Y-2Nd-0.4Zr (wt%) alloy rods were successfully produced by indirect hot extrusion and subsequent aging treatment, and microstructures and mechanical properties of the alloy in the as-cast, as-extruded and peak-aged conditions have also been investigated. The result shows that outstanding aging hardening response is obtained at 92 h as aged at 200 ℃ The peak-aged alloy displays high strength. The values of the ultimate tensile strength and yield tensile strength are 435 MPa and 359 MPa, respectively. The strong aging hardening response is mainly ascribed to the large amount of semi-coherent β′ precipitates forming on the prismatic plane of the matrix.
机译：通过间接热挤压和随后的时效处理，成功地生产了高强度Mg-6Gd-3Y-2Nd-0.4Zr（wt％）合金棒，并在铸态，挤压态和峰态下对合金进行了显微组织和力学性能测试。还研究了老化情况。结果表明，在200℃时效时92 h可获得出色的时效硬化响应。峰时效合金表现出高强度。极限抗拉强度和屈服抗拉强度的值分别为435MPa和359MPa。强烈的时效硬化响应主要归因于在基体的棱柱面上形成的大量半相干β'析出物。

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  • 来源
    《Materials Science and Engineering》 |2014年第26期|380-386|共7页
  • 作者

    Xuan Liu; Wenyi Hu; Qichi Le; Zhiqiang Zhang; Lei Bao; Jianzhong Cui;

  • 作者单位

    Key Lab of Electromagnetic Processing of Materials, Ministry of Education, Northeastern University, 314Mailbox, Shenyang 110819, People's Republic of China;

    Key Lab of Electromagnetic Processing of Materials, Ministry of Education, Northeastern University, 314Mailbox, Shenyang 110819, People's Republic of China;

    Key Lab of Electromagnetic Processing of Materials, Ministry of Education, Northeastern University, 314Mailbox, Shenyang 110819, People's Republic of China;

    Key Lab of Electromagnetic Processing of Materials, Ministry of Education, Northeastern University, 314Mailbox, Shenyang 110819, People's Republic of China;

    Key Lab of Electromagnetic Processing of Materials, Ministry of Education, Northeastern University, 314Mailbox, Shenyang 110819, People's Republic of China;

    Key Lab of Electromagnetic Processing of Materials, Ministry of Education, Northeastern University, 314Mailbox, Shenyang 110819, People's Republic of China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Magnesium alloys; Age hardening; Tensile strength; Indirect extrusion; Mg-Gd-Y-Nd-Zr;

    机译：镁合金;时效硬化;抗拉强度;间接挤出;Mg-Gd-Y-Nd-Zr;

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