Aging characteristics of new metastable beta titanium alloy  

作　　者：葛鹏 周伟 赵永庆 周廉 

机构地区：[1]Northwest Institute for Non-ferrous Metal Research

出　　处：《中国有色金属学会会刊：英文版》2007年第A01期88-92,共5页Transactions of Nonferrous Metals Society of China

基　　金：Project(2006DFA53600) supported by the International Science and Technology Cooperation between China and France;Project(2007CB613805) supported by the National Basic Research Program of China

摘　　要：The aging characteristics including microstructures and properties were investigated for a new metastable beta titanium alloy named Ti-B20 subjected to different solution treatments. Microstructural examination shows that precipitate-free zones,which are present in the many metastable beta titanium alloys,are not produced in the aged new alloy. The decrease of yield stress with the increase of aging temperature is due to the coarsening of alpha platelet. Furthermore,the age hardening effect of the new alloy strengthens with the increase of solution treatment temperature. These aging characteristics are attributed to the relatively lower concentration of beta stabilizer in the new alloy.The aging characteristics including microstructures alloy named Ti-B20 subjected to different solution treatments. and properties were investigated for a new metastable beta titanium Microstructural examination shows that precipitate-free zones, which are present in the many metastable beta titanium alloys, are not produced in the aged new alloy. The decrease of yield stress with the increase of aging temperature is due to the coarsening of alpha platelet. Furthermore, the age hardening effect of the new alloy strengthens with the increase of solution treatment temperature. These aging characteristics are attributed to the relatively lower concentration of beta stabilizer in the new alloy.

关 键 词：钛合金 老化过程 微观结构 张力特性 

分 类 号：TG156.92[金属学及工艺—热处理]