稀土金属Y对Cu-Cr合金硬度和导电率的影响  

Effect of Y on the Hardness and Electrical Conductivity of Cu-Cr Alloy

作　　者：尹建营[1] 张萌[1] 陈晓芳[1] 

机构地区：[1]南昌大学材料科学系,江西南昌330047

出　　处：《金属热处理》2004年第4期32-35,共4页Heat Treatment of Metals

基　　金：教育部高等学校骨干教师资助计划 (GG 43 0 1190 2 10 10 ) ;江西省自然科学基金项目 ( 0 0 5 0 0 2 2 )

摘　　要：研究了稀土金属Y不同添加量和不同固溶时效处理工艺对Cu0 8Cr合金硬度和导电率的影响。结果表明 ,铸态Cu0 8Cr合金的硬度随Y含量的增加而升高 ;经过不同固溶时效后 ,硬度出现波动 ,其中Cu0 8Cr0 4Y可获得最高硬度。过量的Y能增加硬度 ,但会降低导电率 ,经固溶时效处理后导电率最高的合金为Cu0 8Cr0 1Y。The effects of Y addition and different solution and aging processes on hardness and electrical conductivity of Cu-Cr alloys were studied.The results show that the hardness of Cu0.8Cr alloy as casting is enhanced with the increasing of Y.After different processes of solution-aging,the hardnesses of alloys are fluctuating,and the hardness of Cu0.8Cr0.4Y is the highest.More Y can increase hardness of the alloy but reduce electrical conductivity.After solution-aging,the electrical conductivity of Cu0.8Cr0.1Y reaches the peak point.

关 键 词：钇 铜铬合金 硬度 导电率 固溶时效 

分 类 号：TG146.4[一般工业技术—材料科学与工程]