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首页> 外文期刊>Materials Science and Engineering >Synchronously improved fatigue strength and fatigue crack growth resistance in twinning-induced plasticity steels
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Synchronously improved fatigue strength and fatigue crack growth resistance in twinning-induced plasticity steels

机译：孪生诱导可塑性钢同时提高疲劳强度和抗疲劳裂纹扩展性

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摘要

The tensile, high-cycle fatigue (HCF) and fatigue crack growth (FCG) rate tests of Fe-30Mn-0.9C and Fe-30Mn-0.3C twinning-induced plasticity (TWIP) steels were performed. Meanwhile, the corresponding surface damages, fatigue fracture morphologies and microstructure evolutions were also investigated. It is detected that both the fatigue strength and FCG resistance of Fe-30Mn-0.9C steel are higher than those of Fe-30Mn-0.3C steel, because Fe-30Mn-0.9C steel possesses higher yield strength, plasticity and slip planarity than Fe-30Mn-0.3C steel. Furthermore, it is proposed that, for the Fe-Mn-C TWIP steel, increasing the C content to enhance the short range order (SRO) would lead to the synchronous increment in the fatigue strength and FCG resistance. This study may have a certain guiding significance for the selection of materials to against fatigue fracture.
机译：对Fe-30Mn-0.9C和Fe-30Mn-0.3C孪生诱导塑性（TWIP）钢进行了拉伸，高周疲劳（HCF）和疲劳裂纹扩展（FCG）速率测试。同时，还研究了相应的表面损伤，疲劳断裂形态和微观组织演变。据检测，Fe-30Mn-0.9C钢的疲劳强度和耐FCG均高于Fe-30Mn-0.3C钢，因为Fe-30Mn-0.9C钢具有比Fe-30Mn-0.9C钢更高的屈服强度，塑性和滑动平面度Fe-30Mn-0.3C钢。此外，提出对于Fe-Mn-C TWIP钢，增加C含量以增强短程有序（SRO）将导致疲劳强度和FCG抵抗性的同步增加。这项研究对于选择抗疲劳断裂的材料可能具有一定的指导意义。

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  • 来源
    《Materials Science and Engineering》 |2018年第10期|533-542|共10页
  • 作者

    B. Wang; P. Zhang; Q.Q. Duan; Z.J. Zhang; H.J. Yang; J.C. Pang; Y.Z. Tian; X.W. Li; Z.F. Zhang;

  • 作者单位

    Department of Materials Physics and Chemistry, School of Materials Science and Engineering, and Key Laboratory for Anisotropy and Texture of Materials (Ministry of Education), Northeastern University, Shenyang 110819, China,Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China;

    Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China;

    Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China;

    Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China;

    Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China;

    Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China;

    Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China;

    Department of Materials Physics and Chemistry, School of Materials Science and Engineering, and Key Laboratory for Anisotropy and Texture of Materials (Ministry of Education), Northeastern University, Shenyang 110819, China;

    Department of Materials Physics and Chemistry, School of Materials Science and Engineering, and Key Laboratory for Anisotropy and Texture of Materials (Ministry of Education), Northeastern University, Shenyang 110819, China,Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    Twinning induced plasticity (TWIP) steel; Fatigue strength; Fatigue crack growth; Yield strength; Plasticity; Slip planarity;

    机译：孪生感应塑性（TWIP）钢;疲劳强度;疲劳裂纹扩展;屈服强度;可塑性;滑动平面度;

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