高压时效处理对Cu54.27Cr45.73合金力学性能及电导率的影响Effect of high pressure ageing treatment on mechanical properties and electrical conductivity of Cu54.27Cr45.73 alloy
赵军,闫志刚,陈久川,文全兴,杨永明,孙欢迎,刘翊安,李红波,孙艳荣
摘要(Abstract):
在3 GPa压力作用下对Cu54.27Cr45.73合金进行不同工艺的时效处理,通过硬度、压缩屈服强度和电导率测试及显微组织观察,探讨了高压时效处理对合金力学性能及电导率的影响。结果表明:高压时效处理能改善合金的力学性能及电导率,该合金经960℃×1 h(固溶)+在3 GPa压力下480℃×1 h的时效处理后可获得较高的力学性能和电导率,其硬度、压缩屈服强度和电导率分别为181 HV、249 MPa和17.86 MS/m,与相同时效温度和时效时间的常压时效处理合金相比,合金的硬度、压缩屈服强度和电导率分别提高17.53%、5.06%和4.94%。
关键词(KeyWords): Cu54.27Cr45.73合金;高压时效处理;力学性能;电导率
基金项目(Foundation): 河北省自然科学基金(E2013409002);; 河北省教育厅科研基金(QN2014031,QN20131117);; 河北省高校百名优秀创新人才(BR2-239);; 河北省普通高等学校青年拔尖人才计划项目(BJ2014001);; 北华航天工业学院科研基金(KY-2014-06,KY-2014-24)
作者(Author): 赵军,闫志刚,陈久川,文全兴,杨永明,孙欢迎,刘翊安,李红波,孙艳荣
DOI: 10.13289/j.issn.1009-6264.2016.01.004
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