摘要
针对Ti40阻燃钛合金环件设计了5种不同的热处理工艺,测试了合金在不同热处理工艺下力学性能和组织特点。结果表明,该合金的热处理不具备传统强化效果,只起到调节组织、使晶界稳定的作用,其主要原因是因为Ti40合金具有极高的Mo当量。推荐Ti40合金环材室温使用时的最佳热处理工艺为850℃×1h水冷+550℃×6h空冷。
Five heat treatment processes were designed for Ti40 burn resistant titanium alloy ring, and their mechanical properties and microstructure were tested after various heat treatments. The results show that the heat treatments produce little strengthening effects on Ti40 alloy ring and only play the roles in adjusting the microstructure and stabilizing the grain boundaries,which is mainly due to the high equivalent of Mo. It is recommended that the optimum heat treatment for Ti40 alloy ring used at room temperature is 850℃× 1 h water cooling ＋ 550 ℃× 6 h air cooling.
出处
《金属热处理》
CAS
CSCD
北大核心
2008年第5期68-71,共4页
Heat Treatment of Metals
基金
国家重点项目(MKPT-01-101(ZD))
国家973项目(2007CB613807)
关键词
TI40阻燃钛合金
热处理
力学性能
强化
Ti40 burn resistant titanium alloy
heat treatment
mechanical properties
strengthening
