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电脉冲处理对预变形Fe13Mn6Si13Cr4Ni0.1C合金形状记忆效应及显微组织的影响
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1.四川建筑职业技术学院 博士后创新实践基地;2.四川大学 制造科学与工程学院

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国家自然科学基金项目(面上项目,重点项目,重大项目)


Effects of Electric Pulse Treatment on Shape Memory Effect and Microstructure in a Pre-deformation Fe13Mn6Si13Cr4Ni0.1C Alloy
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1.Innovation and Practice Base for Postdoctors, Sichuan College of Architectural Technology;2.College of Manufacturing Science and Engineering, Sichuan University

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    摘要:

    研究了电脉冲处理对预变形Fe13Mn6Si13Cr4Ni0.1C合金形状记忆效应及其显微组织的影响。结果表明:电脉冲处理能加速Cr和C原子的迁移及Cr23C6碳化物的析出,降低时效温度,缩短时效时间,并能诱发Cr23C6碳化物的形核。因此,与10%拉伸预变形后再973K,1073K时效的合金相比,10%拉伸预变形后300V,1100μf,1Hz电脉冲处理的Fe13Mn6Si13Cr4Ni0.1C合金,其形状回复率能在300s时间内从固溶态合金的32%提高到87.2%。

    Abstract:

    Effects of electric pulse treatment on shape memory effect and microstructure in a pre-deformation Fe13Mn6Si13Cr4Ni0.1C alloy were investigated. The results indicate that electric pulse treatment can accelerate migration of Cr and C atoms and precipitation of Cr23C6 carbides, lower ageing temperature, shorten ageing time and induce nucleation of Cr23C6 carbides. Therefore, the shape recovery ratio was improved to 87.2% from 32% of a water-quenching alloy within 300 s in a Fe13Mn6Si13Cr4Ni0.1C alloy by 300 V, 1100 μf, 1 Hz electric pulse treatment after 10% tensile pre-deformation compared to alloys aged at 973 K, 1073 K respectively following the same pre-deformation.

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杨世洲,李宁.电脉冲处理对预变形Fe13Mn6Si13Cr4Ni0.1C合金形状记忆效应及显微组织的影响[J].稀有金属材料与工程,2016,45(1):51~55.[Yang Shizhou, Li Ning. Effects of Electric Pulse Treatment on Shape Memory Effect and Microstructure in a Pre-deformation Fe13Mn6Si13Cr4Ni0.1C Alloy[J]. Rare Metal Materials and Engineering,2016,45(1):51~55.]
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  • 收稿日期:2014-01-04
  • 最后修改日期:2014-02-12
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  • 在线发布日期: 2019-01-04
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