Effects of thermohydrogen treatment on microstructures of α+β and β titanium alloy as-cast

作     者：赵永庆 曹兴民 奚正平 

作者机构：Northwest Institute for Nonferrous Metal Research 

出 版 物：《中国有色金属学会会刊：英文版》 (Transactions of Nonferrous Metals Society of China)

年 卷 期：2007年第17卷第A01期

页      面：471-476页

核心收录：

学科分类：08[工学] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

基　　金：Projects(50434030) supported by the National Natural Science Foundation of China 

主　　题：钛合金 热处理技术 微观结构 成型模式 

摘      要：The effects of thermohydrogen treatment on the microstructures of TC21 and Ti40 alloys as-cast were researched. The results show that the β phase content increases after charged hydrogen. Compound TixHy appears if H content reaches a certain content,which perfectly gathers on the grain-boundaries and/or dislocations and then diffuses into the grains. The microstructure of TC21 alloy after thermohydrogen treatment becomes fine and the best H content is 0.4%(mass fraction). However,the influence of thermohydrogen treatment on Ti40 microstructure is not obvious.