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首页> 外文期刊>Materials Science and Engineering >Effects of Cu on microstructure, mechanical properties and damping capacity of high damping Mg-l%Mn based alloy
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Effects of Cu on microstructure, mechanical properties and damping capacity of high damping Mg-l%Mn based alloy

机译：铜对高阻尼Mg-1％Mn基合金组织，力学性能和阻尼性能的影响

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摘要

In this paper, a high clamping Mg-1%Mn based alloy with good corrosion resistance and adequate strength was prepared by studying the properties of Mg-Mn alloys. The effects of Cu addition on microstructure, mechanical properties and damping capacity of Mg-l%Mn alloy were investigated. The results show that Cu addition remarkably reduces the grain size of Mg-l%Mn alloy and a new binary phase, Mg_2Cu, can be identified, which segregates at grain boundaries in the form of divorced eutectic and worsens the tensile properties. Using a low strain amplitude, the damping capacities of Mg-Cu-Mn alloys show minor variation with increasing Cu content, while with a high strain amplitude, the internal friction decreases with the smaller grain size and increasing amount of precipitates. In addition, the temperature dependent damping behavior of the Mg-Cu-Mn alloys was also discussed.
机译：通过研究Mg-Mn合金的性能，制备了一种具有良好的耐腐蚀性和足够的强度的高夹紧力Mg-1％Mn基合金。研究了添加铜对Mg-1％Mn合金组织，力学性能和阻尼能力的影响。结果表明，添加铜显着减小了Mg-1％Mn合金的晶粒尺寸，并且可以识别出一种新的二元相Mg_2Cu，它以离析的共晶形式在晶界偏析并降低了拉伸性能。在低应变振幅下，Mg-Cu-Mn合金的阻尼能力随Cu含量的增加而显示出较小的变化，而在高应变振幅下，内摩擦随着晶粒尺寸的减小和析出物数量的增加而减小。此外，还讨论了Mg-Cu-Mn合金随温度变化的阻尼行为。

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  • 来源
    《Materials Science and Engineering》 |2012年第15期|p.87-94|共8页
  • 作者

    Shuqun Chen; Xuanpu Dong; Rong Ma; Lei Zhang; Huan Wang; Zitian Fan;

  • 作者单位

    State Key Laboratory of Materials Processing and Die & Mould Technology, Huazhong University of Science and Technology, Wuhan, Hubei, 430074, China;

    State Key Laboratory of Materials Processing and Die & Mould Technology, Huazhong University of Science and Technology, Wuhan, Hubei, 430074, China;

    State Key Laboratory of Materials Processing and Die & Mould Technology, Huazhong University of Science and Technology, Wuhan, Hubei, 430074, China;

    State Key Laboratory of Materials Processing and Die & Mould Technology, Huazhong University of Science and Technology, Wuhan, Hubei, 430074, China;

    State Key Laboratory of Materials Processing and Die & Mould Technology, Huazhong University of Science and Technology, Wuhan, Hubei, 430074, China;

    State Key Laboratory of Materials Processing and Die & Mould Technology, Huazhong University of Science and Technology, Wuhan, Hubei, 430074, China;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    Mg-1Mn alloy; Mg-Cu-Mn alloy; divorced eutectic; damping capacity;

    机译：Mg-1％Mn合金;Mg-Cu-Mn合金;离婚的共晶;阻尼能力;

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