添加银对大变形Cu-14Fe原位复合材料性能的影响

Effect of Ag on the Properties of Heavily Deformation Processed Cu-14Fe In situ Composites

成分为Cu-14Fe合金及Cu-14Fe-0.1Ag合金经熔炼后,经拉拔成变形量为4,6,7,8的线材,随后进行了时间为1h的等温时效,在此基础上测试了合金的拉伸力学性能和电导率,用金相和扫描电子显微分析研究了不同处理态合金的微观组织结构及其变化。结果表明,添加银后,合金的强度和电导率均略有提高,且经合适的等温时效工艺处理后,可获得Cu-14Fe-0.1Ag合金强度与导电率的优化组合。

The Cu-14Fe alloy and Cu-14Fe-0.1Ag alloy were prepared by using melting.Then the two alloys were treated by solution-cold drawing and isochronal aging for 1 hour,the deformation ratio was 4,5,6,7 and 8,respectively.The effects of solution mode and deformation ratio on mechanical and electrical properties of the alloys were studied,the microstructure of the alloy was also studied by metallograph and SEM.The results indicated that the conductivity and strength of the alloy could be obtained higher value by the addition of element of Ag.Meanwhile it can be obtained combination of proper value of strength and conductivity by appropriate isochronal aging treatment.