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首页> 外文期刊>Materials & design >A microstructural investigation on deformation mechanisms of Fe-18Cr-12Mn-0.05C metastable austenitic steels containing different amounts of nitrogen
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A microstructural investigation on deformation mechanisms of Fe-18Cr-12Mn-0.05C metastable austenitic steels containing different amounts of nitrogen

机译：含氮量不同的Fe-18Cr-12Mn-0.05C亚稳奥氏体钢的变形机理的显微组织研究

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摘要

Deformation mechanisms of the Ni-free Fe-18Cr-12Mn-0.05C (wt%) austenitic steels containing 0, 0.25 and 0.44 N were investigated. Effects of N addition, strain and temperature on the formation of deformation-induced ε- and α'-martensite phases were determined using transmission electron microscopy and electron back-scattered diffraction techniques. Based on the microstructural evolutions, it is proposed that deformation mechanism of these steels includes the sequence of γ → ε-martensi-te → α'-martensite, in which the formation and stability of the ε-martensite is significantly enhanced by the N content. Increased deformation temperature from 298 to 373 K reduces the formation of ε-martensite (more than 80%).
机译：研究了含0、0.25和0.44 N的无镍Fe-18Cr-12Mn-0.05C（wt％）奥氏体钢的变形机理。使用透射电子显微镜和电子背散射衍射技术确定了氮的添加，应变和温度对形变诱发的ε-和α'-马氏体相形成的影响。根据组织演变，提出了这些钢的变形机理包括γ→ε-马氏体-te→α'-马氏体的序列，其中N含量显着提高了ε-马氏体的形成和稳定性。 。变形温度从298 K增加到373 K，可减少ε-马氏体的形成（超过80％）。

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  • 来源
    《Materials & design》 |2015年第5期|273-280|共8页
  • 作者

    A. Kermanpur; P. Behjati; J. Han; A. Najafizadeh; Y.-K. Lee;

  • 作者单位

    Department of Materials Engineering, Isfahan University of Technology, Isfahan 84156-83111, Iran;

    Department of Materials Engineering, Isfahan University of Technology, Isfahan 84156-83111, Iran;

    Department of Materials Science and Engineering, Yonsei University, Seoul 120-749, Republic of Korea;

    Department of Materials Engineering, Isfahan University of Technology, Isfahan 84156-83111, Iran;

    Department of Materials Science and Engineering, Yonsei University, Seoul 120-749, Republic of Korea;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    Ni-free austenitic stainless steels; Deformation mechanism; Martensitic transformation; Nitrogen;

    机译：无镍奥氏体不锈钢;变形机制;马氏体转变;氮;

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