摘要
以Cu-15Cr、Cu-15Cr-0.1Ag合金为研究对象,结合金相显微分析、扫描电镜分析、电导率测试、硬度测试等实验手段,研究了微量Ag元素对不同状态下Cu-15Cr合金组织和性能的影响。结果表明:微量Ag元素的加入能够显著减少第二相偏聚析出,对第二相有一定的细化作用,在相同的形变热处理工艺下,保持电导率不显著降低的同时明显提高了合金的硬度和延伸率,使得合金的综合性能显著提升。
Combined with metallographic microscopy,scanning electron microscopy(SEM)analysis and the experimental means such as electrical conductivity test,hardness test,the influence of Ag on the microstructure and mechanical properties of Cu-15Cr alloy in different state was studied.Results show that the addition of trace Ag elements can significantly reduce partial precipitation of the second phase and refine the second phase.Under the same thermal mechanical heat treatment process,the hardness and elongation of the alloy was increased by keeping the conductivity.The comprehensive performance of alloy significantly increased.
作者
朱律齐
周海涛
刘克明
王顺成
ZHU Lyuqi;ZHOU Haitao;LIU Keming;WANG Shuncheng(School of Material Science and Engineering, Central South University, Changsha 410083;Key Laboratory of Non-ferrous Metal Material Science and Engineering, Central South University, Changsha 410083;Jiangxi Key Laboratory for Precision Actuation and Control, Nanchang Institute of Technology, Nanchang 330099;Guangdong Institute of Materials and Processing, Guangzhou 510650)
出处
《材料导报》
EI
CAS
CSCD
北大核心
2018年第A02期402-405,共4页
Materials Reports
基金
国家自然科学基金(51461018)
关键词
原位复合铜合金
形变热处理
硬度
电导率
in situ composite copper alloy
thermal mechanical treatment
hardness
electricity conductivity
