摘要
首先对CuCoBeZr合金电极进行不同保温时间的深冷处理,然后分别采用光学显微镜、扫描电镜等方法对所获材料与未处理材料的微观组织进行观测,又通过双臂电桥法测量其电阻值,最后测量其硬度,结果表明:随着深冷保温时间的增加CuCoBeZr合金电极导电能力、电极硬度开始都有所提高,然后达到一定阶段,趋于稳定,说明深冷处理对CuCoBeZr合金电极的点焊性能具有积极的影响.
The samples of a CuCoBeZr alloy electrode was cryogenically treated with different holding periods.The microstructure of the treated and untreated samples were observed and analyzed by optical microscope and scanning electron microscope(SEM),the resistances were measured by double arm bridge method,and the hardness of the samples was also tested.Experiment results show that the microstructure of the electrode materials is changed by the cryogenic treatment.By comparing its conductivity,hardness and thermal conductivity,it shows that the conductive ability and electrode hardness of the treated CuCoBeZr alloy electrode are firstly improved and then kept stable with the increase of cryogenic treatment holding periods.The results indicate the positive effect of cryogenic treatment on the spot-welding properties of the CuCoBeZr alloy.
作者
张木
ZHANG Mu(School of Material Engineering,Shanxi Polytechnic Institute,Xianyang 712100,China)
出处
《大连交通大学学报》
CAS
2018年第6期88-91,共4页
Journal of Dalian Jiaotong University
关键词
CuCoBeZr合金
点焊
深冷处理
电导率
热导率
CuCoBeZr alloy
cryogenic treatment
spot welding
conductivity
thermal conductivity
