稀土钇对Pt-5Ru合金组织结构和性能的影响  

Effect of rare earth yttrium on the microstructure and properties of Pt-5Ru alloy

作　　者：张茂 胡昌义[1] 蔡宏中[1] 魏燕[1] 张大伟 赵君[1] 张诩翔 张贵学 ZHANG Mao;HU Chang-yi;CAI Hong-zhong;WEI Yan;ZHANG Da-wei;ZHAO Jun;ZHANG Xu-xiang;ZHANG Gui-xue(State Key Laboratory of Advanced Technologies for Comprehensive Utilization of Platinum Metals,Kunming Institute of Precious Metals,Kunming 650106,China)

机构地区：[1]昆明贵金属研究所稀贵金属综合利用新技术国家重点实验室,昆明650106

出　　处：《贵金属》2022年第S01期5-8,28,共5页Precious Metals

基　　金：云南省应用基础重点项目(2019FA048);云南省重大科技新材料专项(2018ZE001)。

摘　　要：用真空电弧熔炼方法制备Pt-5Ru合金,并添加少量钇进行弥散强化。用X射线衍射仪(XRD)、金相显微镜、显微硬度仪和分光光度计等设备研究了Pt-Ru-Y合金的显微组织结构、力学性能和反射率的变化。结果表明,稀土元素钇的添加可以对Pt-Ru合金晶粒起到显著的细化作用,减少合金内部缺陷,提高合金的显微硬度,使合金力学性能得到明显的改善。Pt-5Ru alloys was prepared by vacuum arc melting and a small amount of yttrium was added for dispersion strengthening.The microstructure,mechanical properties and reflectance of Pt-Ru-Y alloys were studied by X-ray diffractometer(XRD),metallographic microscope,microhardness tester and spectrophotometer.The results show that the addition of rare earth element yttrium can significantly refine the grain of Pt-Ru alloy,purify the air absorption effect,reduce the internal defects of the alloy,improve the microhardness of the alloy,and improve the mechanical properties of the alloys.

关 键 词：Pt-Ru合金 添加钇 弥散强化 组织结构 维氏硬度 反射率 

分 类 号：TG146.3[一般工业技术—材料科学与工程]