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首页> 外文期刊>Materials Science and Engineering >A new rare-earth-free Mg-Sn-Ca-Mn wrought alloy with ultra-high strength and good ductility
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A new rare-earth-free Mg-Sn-Ca-Mn wrought alloy with ultra-high strength and good ductility

机译：一种全新的稀土MG-CA-CA-MN锻造了超高强度和良好的延展性的合金

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摘要

A novel rare-earth-free Mg-Sn-Ca-Mn wrought alloy with the new yield strength record of 450 MPa is developed, and a balanced ductility of similar to 5% is achieved. The role of Mn addition is associated with promoting the nucleation rate for dynamic recrystallized grains and restricting their growths by enhancing the thermal stability. Specially, the dynamic recrystallization within the twinned region readily occurs due to the extensive dislocation accumulations and high thermal stability of the pre-existed twins. Twining induced dynamic recrystallization can effectively rotate the original grains to the non-basal orientation, leading to the texture weakening and elongation improvement.
机译：开发了一种新的稀土米稀土Mg-SN-CA-MN锻造合金，具有450MPa的新屈服强度记录，实现了类似于5％的平衡延展性。添加的作用与促进动态重结晶晶粒的成核速率相关，并通过提高热稳定性来限制它们的生长。特别是，由于预先存在的双胞胎的偏移积累和高热稳定性，孪晶区域内的动态重结晶容易发生。缠绕诱导的动态再结晶可以有效地将原始晶粒旋转到非基础取向，导致质地疲软和伸长率改善。

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  • 来源
    《Materials Science and Engineering》 |2019年第29期|269-274|共6页
  • 作者

    Zhang Aiyue; Kang Rui; Wu Lu; Pan Hucheng; Xie Hongbo; Huang Qiuyan; Liu Yujie; Ai Zhengrong; Ma Lifeng; Ren Yuping; Qin Gaowu;

  • 作者单位

    Northeastern Univ Sch Mat Sci & Engn Minist Educ Key Lab Anisotropy & Texture Mat Shenyang 110819 Liaoning Peoples R China;

    Northeastern Univ Sch Mat Sci & Engn Minist Educ Key Lab Anisotropy & Texture Mat Shenyang 110819 Liaoning Peoples R China;

    Nucl Power Inst China Sub Inst 1 Chengdu 610041 Sichuan Peoples R China;

    Northeastern Univ Sch Mat Sci & Engn Minist Educ Key Lab Anisotropy & Texture Mat Shenyang 110819 Liaoning Peoples R China;

    Northeastern Univ Sch Mat Sci & Engn Minist Educ Key Lab Anisotropy & Texture Mat Shenyang 110819 Liaoning Peoples R China;

    Chinese Acad Sci Inst Met Res Shenyang 110016 Liaoning Peoples R China;

    Northeastern Univ Sch Mat Sci & Engn Minist Educ Key Lab Anisotropy & Texture Mat Shenyang 110819 Liaoning Peoples R China;

    Northeastern Univ Sch Mat Sci & Engn Minist Educ Key Lab Anisotropy & Texture Mat Shenyang 110819 Liaoning Peoples R China;

    Taiyuan Univ Sci & Technol Shanxi Prov Key Lab Met Equipment Design & Techno Taiyuan 030024 Shanxi Peoples R China;

    Northeastern Univ Sch Mat Sci & Engn Minist Educ Key Lab Anisotropy & Texture Mat Shenyang 110819 Liaoning Peoples R China;

    Northeastern Univ Sch Mat Sci & Engn Minist Educ Key Lab Anisotropy & Texture Mat Shenyang 110819 Liaoning Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    Mg alloy; Twinning; Thermal stability; Dynamic recystallization; Mechanical property;

    机译：Mg合金;孪生;热稳定;动态回归;机械性质;

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