摘要
研究810℃固溶后冷却速度对TB6钛合金的组织和塑性的影响。结果表明:当冷却速度较快时,β相来不及析出α相而生成α"(α"是淬火马氏体);在拉伸过程中,亚稳定β相产生应力诱发马氏体相变为材料带来较高的塑性;当冷速减慢时,材料完成β→α的转变,造成材料的低塑性。故水冷条件下能获得最佳的塑性。
After solid solution at 810 ℃,the influence of cooling rate on microstructure and plasticity of TB6 titanium alloy was analyzed. The results show that under higher cooling rate,the phase transformation of β to α will not happen,while quenched martensite generates in β grain. During tension,metastable β phase transforms to α＂,which leads to higher ductility. Under lower cooling rate,the β phase transforms to α phase,which leads to low ductility. Therefore,the highest plasticity can be obtained under water cooling.
出处
《兵器材料科学与工程》
CAS
CSCD
北大核心
2016年第2期20-22,共3页
Ordnance Material Science and Engineering
基金
贵州省工业攻关项目(黔科合GZ字[2012]3004)
贵州省科技厅优秀青年科技人才项目(黔科合人字(2013)08号)
关键词
固溶
冷速
马氏体
塑性
solid solution
cooling rate
martensite
plasticity
