稀土变质处理ZnAl4合金的研究  

Investigation on Modification of ZnAl4 Alloy Treated by Rare Earth

作　　者：耿家锐[1] 古文全[1] 聂登攀[1] 吴健[1] 

机构地区：[1]贵州省冶金化工研究所,贵州贵阳550002

出　　处：《铸造技术》2011年第8期1101-1104,共4页Foundry Technology

摘　　要：为改善和提高ZnAl4合金的力学性能,采用Ce基混合稀土对ZnAl4合金进行变质处理,研究了稀土对ZnAl4合金力学性能的影响规律。结果表明,稀土的加入能够显著细化ZnAl4合金的铸态组织,共晶组织区域增加。随着稀土含量的增加,合金的力学性能得到不同程度的改善,当稀土加入量为0.5%时,该合金的综合力学性能最好。In order to improve and enhance the mechanical performance of ZnAl4 alloy,the rare earth metal-cerium was used in modification of ZnAl4 alloy.The influences of RE on mechanical properties of ZnAl4 were researched and discussed systematically in this paper.The results shows that the addition of RE can refine microstructure of die-cast castings obviously and increase the eutectic region of alloy.Mechanical properties of the alloy improved with the increasing of RE content,When the RE content is 0.5%,the mechanical property reaches the best.

关 键 词：ZnAl4合金 稀土 变质处理 力学性能 

分 类 号：TG113[金属学及工艺—物理冶金]