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Effects of precipitation and strain-induced martensitic transformation of Fe-C phases on the mechanical properties of Cu-Fe-C alloy

机译：Fe-C相的析出和应变诱发马氏体相变对Cu-Fe-C合金力学性能的影响

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摘要

Effects of precipitation and strain-induced martensitic transformation of Fe-C phases on the mechanical properties of Cu-Fe-C alloy were systematically studied. The results reveal that, the hardness and strengths of Cu-Fe-C alloy can be increased after cold rolling, and forming shear bands in the alloy matrix. However, compared with directly cold rolling, the hardness, strengths and elongation can be all increased much more after using the processing of cold rolling 80% + heat treatment at 400 ℃ for 60 min + cold rolling 75%, which results from the contribution of both work hardening and precipitation strengthening of nano-sized α-Fe particles formed by strain-induced martensitic transformation. The formed α-Fe particles satisfy the K-S orientation relationship with Cu matrix, i.e. (011)_(α-Fe)//(-111)_(cu),[-11-1] _(α-Fe)//[110]_(Cu). These findings provide inspiring using the martensitic transformation of Fe-C phases to improve mechanical properties of Cu-Fe-C alloys.
机译：系统研究了Fe-C相的析出和应变诱发马氏体相变对Cu-Fe-C合金力学性能的影响。结果表明，冷轧后可以提高Cu-Fe-C合金的硬度和强度，并在合金基体中形成剪切带。但是，与直接冷轧相比，使用80％的冷轧+ 400℃的热处理60分钟+ 75％的冷轧后，硬度，强度和伸长率都可以大大提高。应变诱导马氏体相变形成的纳米α-Fe颗粒均能进行硬化和沉淀强化。形成的α-Fe颗粒满足与Cu基体的KS取向关系，即（011）_（α-Fe）//（-111）_（cu），[-11-1] _（α-Fe）// [110] _（Cu）。这些发现为使用Fe-C相的马氏体相变以改善Cu-Fe-C合金的力学性能提供了启发。

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  • 来源
    《Materials Science and Engineering》 |2017年第14期|119-125|共7页
  • 作者

    M.X. Guo; J. Zhu; L. Yi; F. Wang; G.J. Li; R.S. Lei;

  • 作者单位

    State Key Laboratory for Advanced Metals and Materials, University of Science and Technology Beijing, Beijing 100083, PR China;

    State Key Laboratory for Advanced Metals and Materials, University of Science and Technology Beijing, Beijing 100083, PR China;

    State Key Laboratory for Advanced Metals and Materials, University of Science and Technology Beijing, Beijing 100083, PR China;

    State Key Laboratory for Advanced Metals and Materials, University of Science and Technology Beijing, Beijing 100083, PR China;

    State Key Laboratory for Advanced Metals and Materials, University of Science and Technology Beijing, Beijing 100083, PR China;

    College of Materials Science and Engineering, China Jiliang University, Hangzhou 310018, PR China;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    Cu-Fe-C alloy; Precipitation; Strain-induced; Martensitic transformation; Strengthening;

    机译：铜铁碳合金;沉淀;应变诱导马氏体转变;强化;

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