高强高导Cu-Cr-Zr系合金的研究现状  

Review of High-Strength and High-Conductivity Cu-Cr-Zr Alloys

作　　者：叶权华[1] 刘平[1] 刘勇[1] 田保红[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：《河南科技大学学报（自然科学版）》2005年第5期1-4,共4页Journal of Henan University of Science And Technology:Natural Science

基　　金：国家高技术研究发展计划资助项目(2002AA331112);河南省杰出人才基金项目(0521001200);河南科技大学基金项目(2004ZY003)

摘　　要：从合金成分设计、析出相结构和制备技术三方面综述了高强高导Cu-Cr-Zr系合金的研究现状。在分析多种元素对合金强度影响的基础上,重点讨论了稀土元素的作用,适量稀土的加入能同时提高合金的硬度和电导率。Cu-Cr-Zr系合金的析出相主要是Cr和CuxZr(x=3,4,5)相,且合金在470℃时效4h形成有序的原子排列,其化合物类型为CrCu2(Zr,Mg)。固溶形变时效强化技术和快速凝固技术与常规固溶时效处理相比都能大大提高合金的综合性能。该类合金今后应向多元微合金化方向发展,尚待解决的主要问题是Zr、稀土等易烧损元素的熔炼较难控制。The present situation of high-strength and high-conductivity Cu-Cr-Zr alloys was dealt with in terms of ingredient designation,microstructure,and preparation technique.Based on the analysis of different elements,the functions of proper RE which could increase micro-hardness and electrical conductivity of Cu-Cr-Zr alloys were discussed.The precipitates of Cu-Cr-Zr alloys were Cr, Cu3～5Zr and ordered CrCu2(Zr,Mg) which could be observed in the alloys after being aged at 470 ℃ for 4 h.Compared with the single soluted treatment,the alloy's properties could be enhanced through soluted-deformed-aged technique and rapidly solidified technique.The research goal of this kind of alloys would be micro-alloyed using multi and micro elements.The dominant problem is difficulty in controlling the easily burned-out elements(Zr,Re) in metallurgy.

关 键 词：铜合金 高强高导 微合金化 显微结构 固溶形变时效强化 

分 类 号：TG146.11[一般工业技术—材料科学与工程]