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首页> 外文期刊>Materials Science and Engineering >Combining surface mechanical attrition treatment with friction stir processing to optimize the mechanical properties of a magnesium alloy
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Combining surface mechanical attrition treatment with friction stir processing to optimize the mechanical properties of a magnesium alloy

机译：将表面机械磨损处理与摩擦搅拌处理相结合，以优化镁合金的机械性能

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摘要

Friction stir processing (FSP) and surface mechanical attrition treatment (SMAT) were performed on an AZ31 magnesium alloy to improve the mechanical properties. The microstructure, macro-texture, as well as mechanical properties were investigated by optical microscopy, transmission electron microscopy, X-ray diffractometer and uniaxial tensile tests respectively. FSP significantly refined the initial grain structure and modified the texture of the experimental material; and the elongation got increased with a loss in yield and flow stresses. SMAT introduced a severely localized deformation layer on sample surfaces, which greatly strengthened the local micro-hardness and yield stress of parental matrix. By combining SMAT with FSP, the loss in yield and flow stresses caused by FSP could be well compensated by the SMAT routing. This optimized the mechanical properties of the experimental material.
机译：为了改善机械性能，对AZ31镁合金进行了摩擦搅拌处理（FSP）和表面机械磨损处理（SMAT）。分别通过光学显微镜，透射电子显微镜，X射线衍射仪和单轴拉伸试验研究了显微组织，宏观结构以及机械性能。 FSP显着改善了初始晶粒结构并改变了实验材料的质构；伸长率随屈服应力和流应力的损失而增加。 SMAT在样品表面上引入了严重的局部变形层，从而极大地增强了母体基体的局部显微硬度和屈服应力。通过将SMAT与FSP结合使用，可以通过SMAT路由很好地补偿FSP引起的屈服和流应力损失。这优化了实验材料的机械性能。

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  • 来源
    《Materials Science and Engineering》 |2019年第22期|184-189|共6页
  • 作者

    Zhang Zhen; Li Yaozu; Peng Jinhua; Guo Peng; Huang Jian; Yang Pengju; Wang Shan; Chen Chang; Zhou Wei; Wu Yucheng;

  • 作者单位

    Hefei Univ Technol, Sch Mat Sci & Engn, Hefei 230009, Anhui, Peoples R China|Natl Local Joint Res Ctr Nonferrous Met Mat & Pro, Hefei 230009, Anhui, Peoples R China;

    Hefei Univ Technol, Sch Mat Sci & Engn, Hefei 230009, Anhui, Peoples R China|Natl Local Joint Res Ctr Nonferrous Met Mat & Pro, Hefei 230009, Anhui, Peoples R China;

    Hefei Univ Technol, Sch Mat Sci & Engn, Hefei 230009, Anhui, Peoples R China|Hefei Univ Technol, Inst Ind & Equipment Technol, Hefei 230009, Anhui, Peoples R China;

    Hefei Univ Technol, Sch Mat Sci & Engn, Hefei 230009, Anhui, Peoples R China;

    Hefei Univ Technol, Sch Mat Sci & Engn, Hefei 230009, Anhui, Peoples R China;

    Hefei Univ Technol, Sch Mat Sci & Engn, Hefei 230009, Anhui, Peoples R China|Natl Local Joint Res Ctr Nonferrous Met Mat & Pro, Hefei 230009, Anhui, Peoples R China;

    Hefei Univ Technol, Sch Mat Sci & Engn, Hefei 230009, Anhui, Peoples R China|Hefei Univ Technol, Inst Ind & Equipment Technol, Hefei 230009, Anhui, Peoples R China;

    Hefei Univ Technol, Sch Mat Sci & Engn, Hefei 230009, Anhui, Peoples R China|Natl Local Joint Res Ctr Nonferrous Met Mat & Pro, Hefei 230009, Anhui, Peoples R China;

    Hefei Univ Technol, Inst Ind & Equipment Technol, Hefei 230009, Anhui, Peoples R China|Nanyang Technol Univ, Sch Mech & Aerosp Engn, 50 Nanyang Ave, Singapore, Singapore;

    Hefei Univ Technol, Sch Mat Sci & Engn, Hefei 230009, Anhui, Peoples R China|Natl Local Joint Res Ctr Nonferrous Met Mat & Pro, Hefei 230009, Anhui, Peoples R China;

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

    Friction stir processing; Surface mechanical attrition treatment; Mechanical properties; Yield strength;

    机译：搅拌摩擦加工;表面机械磨损处理;机械性能;屈服强度;

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