Pt-24Ir-RE合金的显微组织与性能研究  

Investigation on the Microstructure and Properties of Pt-24Ir-RE Alloys

作　　者：谢明[1] 陈江[1] 陈力[1] 符世继[1] 宁德魁[1] 曾荣川[1] 杨有才[1] 李汝民[1] 段云喜[1] 郑福前[1] 

机构地区：[1]昆明贵金属研究所,云南昆明650221

出　　处：《贵金属》2004年第3期25-28,共4页Precious Metals

摘　　要：通过金相及电子显微镜技术,进行了力学和电学性能实验,研究了添加微量稀土元素La、Sm、Y对Pt-24Ir合金的组织结构与性能的影响。结果表明稀土元素有效地细化了合金的显微组织结构,并以单质形式均匀析出和弥散分布在合金基体中,从而使合金的综合性能获得改善。The effects of rare-earth elements (RE: La,Sm,Y) on microstructure, physical, mechanical and electrical properties were studied by means of optical metallography, electron microscope, mechanical and electrical tests. The results showed that the addition of a small amount of rare-earth elements in Pt-24Ir alloy can fine the microstructure,the rare-earth elements can be precipitated and dispersed in the matrix, resulting in an improvements of properties of the alloys.

关 键 词：Pt-24Ir-RE合金 金属材料 铂铱合金 稀土 显微组织 性能 

分 类 号：TG146.3[一般工业技术—材料科学与工程]