TC21合金高温渗氢组织变化的研究  

Change of Microstructure for TC21 Alloys after Thermohydrogen Treatment

作　　者：曹兴民[1] 奚正平[2] 赵永庆[2] 

机构地区：[1]西安建筑科技大学材料学院,陕西西安710055 [2]西北有色金属研究院,陕西西安710016

出　　处：《钛工业进展》2005年第4期16-18,共3页Titanium Industry Progress

基　　金：国防973资助项目(41312020306)

摘　　要：研究了α+β型钛合金TC21锻态组织的高温渗氢行为,通过对合金渗氢前后和除氢后的显微组织观察发现,渗氢后大β相的数量明显增加,并有氢化物的生成;除氢后,晶粒组织得到细化,原始晶界变得模糊,其相应的硬度也发生了一定变化。分析了氢致组织细化的机理。The behaviors of hydrogenation were investigated of forging α＋β alloy TC21. The microstructures were analyzed before and after being hydrogenated and after dehydrogenated also. The results indicated that β phases were increased markedly, hydrides were produced, microstructure was fined, grain boundary became vague, and the hardness got changed with it. The mechanism of fining was analyzed.

关 键 词：钛合金TC21 氢 组织 细化 TC21合金 组织变化 渗氢 高温 组织细化 Β型钛合金 

分 类 号：TG156.8[金属学及工艺—热处理]