微量Ce对Cu-Cr-Zr合金性能影响  

Influence of Trace Ce on Properties of Cu-Cr-Zr Alloy

作　　者：刘勇[1] 刘平[1] 田保红[1] 任凤章[1] 

机构地区：[1]河南科技大学材料科学与工程学院,河南洛阳471003

出　　处：《金属热处理》2005年第C00期235-237,共3页Heat Treatment of Metals

基　　金：国家高技术研究发展计划（863）项目（2002AA331110）;河南省杰出人才基金项目（0521001200）;河南科技大学科研基金资助项目（2004ZY003）

摘　　要：本文研究了稀土Ce对电气化铁路用高强高导接触线Cu-Cr-Zr合金的强度、硬度、导电性和热强性等的影响。结果表明：微量稀土元素Ce的加入可以提高Cu-Cr-Zr合金的强度、硬度和耐热性，抗拉强度可达637MPa，导电率为82．16％IACS，相对于Cu—Cr-Zr合金强度提高了56MPa，而导电性略有降低。This paper is dealt with the effects of rare-earth on the properties （such as strength, hardness, electrical conductivity and heat-resistance, etc.） of Cu-Cr-Zr contact wire for electrified railway. With adding trace rare-earth element Ce, the results showed that the strength, hardness and heat-resistance of Cu-Cr-Zr alloy were improved, and tensile strength was enhanced to 637 MPa that was increased 56 MPa compared with Cu-Cr-Zr alloy, but the electrical conductivity of Cu-Cr-Zr-Ce alloy was 82.16 %IACS which was a bit lowered.

关 键 词：高强高导 Cu—Cr-Zr-Ce合金 显微硬度 导电率 

分 类 号：TG146.1[一般工业技术—材料科学与工程] TG113.2[金属学及工艺—金属材料]