固溶时效工艺对TC4钛合金冲击性能的影响  

Effect of Solution Aging Treatment on Impact Property of TC4 Titanium Alloy

作　　者：谭国寅[1] 吴云峰[1] 杨钢[1] 孙彦华[1] 岳有成[1] 

机构地区：[1]昆明冶金研究院,云南昆明650031

出　　处：《铸造技术》2016年第5期902-903,共2页Foundry Technology

基　　金：云南省重大科技专项(项目编号:2012ZE008);云南省应用基础研究青年基金(项目编号:2014FD083)

摘　　要：应用金相显微镜和冲击试验机研究了固溶时效后TC4钛合金的冲击性能。结果表明,热处理后显微组织主要由α+β相构成,固溶阶段形成的马氏体α″和亚稳态β相将发生分解,转变成稳定的α相和β相。试样经过热处理后组织得到了优化,冲击性能得到了提高,使TC4钛合金的综合性能得到了改善。Using OM and impact test machine, the impact properties of TC4 titanium alloy after quench-aging were studied. The results show that microstructure of the alloy consists of α＋β phase after heat treatment, the martensite α″ phase and metastable β phase formed during solution process are decomposed and changed into stable α＋β phase. The microstructure of the specimens after heat treatment optimizes, the impact properties improve, and comprehensive properties of TC4 titanium alloy also improve.

关 键 词：固溶时效 TC4钛合金 冲击性能 

分 类 号：TG146.23[一般工业技术—材料科学与工程] TG166.5[金属学及工艺—金属材料]