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首页> 外文期刊>Materials Science and Engineering >Stress induced martensite transformation in Co-28Cr-6Mo alloy during room temperature deformation
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Stress induced martensite transformation in Co-28Cr-6Mo alloy during room temperature deformation

机译：Co-28Cr-6Mo合金在室温变形过程中的应力诱发马氏体相变

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摘要

The phase transformation and texture change of two Co-28Cr-6Mo alloys during room temperature deformation were studied by using the in-situ synchrotron X-ray diffraction. It is found that a slight difference in chemical compositions can significantly change the phase constitutions and the mechanical properties. For the material with less Ni, C and N (lower a-phase stability), increasing the grain size promotes the athermal martensite transformation during cooling. The kinetics of the Stress Induced Martensite (SIM) phase transformation may be more affected by the athermal martensite instead of the grain size of the a-phase. After deformation, similar textures are produced in samples regardless the differences in the initial structures such as the phase constitution and the grain size; while a relatively strong {111} texture and a weak {100} texture are produced in the a-phase, a {1011} fiber texture is gradually developed in the ε-phase during uniaxial tension.
机译：利用原位同步加速器X射线衍射研究了两种Co-28Cr-6Mo合金在室温变形过程中的相变和织构变化。发现化学组成的细微差异可显着改变相组成和机械性能。对于Ni，C和N含量较低的材料（较低的a相稳定性），增加晶粒尺寸会在冷却过程中促进马氏体的无热转变。应力诱导马氏体（SIM）相变的动力学可能会受到无热马氏体而不是a相晶粒尺寸的影响。变形后，无论初始结构的不同（例如相组成和晶粒尺寸）如何，样品中都会产生相似的纹理。当在a相中产生相对较强的{111}织构和较弱的{100}织构时，在单轴拉伸过程中{1011}纤维织构在ε相中逐渐发展。

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  • 来源
    《Materials Science and Engineering》 |2013年第15期|209-216|共8页
  • 作者

    S. Cai; M.R. Daymond; Y. Ren;

  • 作者单位

    Fort Wayne Metals Research Products Corporation, 9609 Ardmore Avenue, Fort Wayne, IN 46809, USA;

    Department of Mechanical and Materials Engineering, Queen's University, Nicol Hall, 60 Union Street, Kingston, Ontario, Canada K7L 3N6;

    Advanced Photon Source, Argonne National Laboratory, 9700S. Cass Avenue, 433/D008, Argonne, IL 60439 USA;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    Synchrotron X-ray; Co-Cr-Mo alloy; Stress induced martensite; Texture;

    机译：同步加速器X射线;钴铬钼合金;应力诱发马氏体;质地;

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