稀土变质ZA43合金的研究  

An Investigation of Rare-Earth Modification of ZA43 Alloy

作　　者：郭光平[1] 于云峰[1] 古文全[1] 谢兴同 吴健[1] 薛涛[1] 

机构地区：[1]贵州省冶金化工研究所,贵阳550001

出　　处：《贵州科学》2011年第2期80-84,共5页Guizhou Science

基　　金：贵州省科学院青年基金项目(黔科院J合字[2010]014号)资助

摘　　要：为改善和提高高铝锌合金(ZA43)的力学性能和耐磨性,采用Ce基混合稀土对ZA43合金进行了变质处理,系统研究和探讨了稀土对ZA43合金的力学性能和耐磨损性能的影响规律。研究结果表明:稀土的加入能够显著细化ZA43合金的铸态组织,减小化学成分偏析。随着稀土含量的增加,合金的力学性能和耐磨性得到不同程度的改善,当稀土含量在0.15%时,该合金的综合力学性能最好,可作为铜合金的优良代用材料。In order to improve and enhance the mechanical and wear-resistant properties of high-aluminum zinc foundry alloy （ZA43） , the tie metal-cerium was used in modification of ZA43 alloy. The paper had researched and discussed the influences of RE on mechanical properties and wear-resistant properties of ZA43 systematically. The results shows the as-cast mierostructure of ZA43 alloy can be refined and the chemical segregation is diminished in ZA43 alloy by adding RE. The mechanical properties and wear-resistant properties had been improved variously by the increase of RE. When the content of RE reaces to 0.15 % , the mechanical properties is the best. The alloy can take the place of copper alloy as a good substitute.

关 键 词：ZA43合金 稀土 力学性能 耐磨性 

分 类 号：TG133[一般工业技术—材料科学与工程]