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.]
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
投稿时间:2014-01-04  修订日期:2014-02-12
中文关键词:  形状记忆效应  预变形  电脉冲处理  时效  Cr23C6碳化物  形核率
基金项目:国家自然科学基金项目(面上项目,重点项目,重大项目)
中文摘要:
      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%。
Effects of Electric Pulse Treatment on Shape Memory Effect and Microstructure in a Pre-deformation Fe13Mn6Si13Cr4Ni0.1C Alloy
英文关键词:shape memory effect  pre-deformation  electric pulse treatment  ageing  Cr23C6 carbide  nucleation ratio
英文摘要:
      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.
作者单位E-mail
杨世洲 四川建筑职业技术学院 博士后创新实践基地 yangshizhou@163.com 
李宁 四川大学 制造科学与工程学院 lining@scu.edu.cn 
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