保温温度和时间对TiAl_3形貌和细化效果的影响  

Influence of Holding Temperature and Holding Time on Morphology and Grain Refining Effects of TiAl_3

作　　者：温浩宇[1] 赵建祥 金佳莹[1] 唐正华[1] 

机构地区：[1]四川大学材料科学与工程学院,四川成都610065 [2]四川兰德高科技产业有限公司,四川成都610512

出　　处：《热加工工艺》2012年第8期86-89,共4页Hot Working Technology

摘　　要：研究了保温温度850、900℃,保温时间2、10、30和45 min时,TiAl3相形貌的变化。结果表明,随着保温温度的升高及保温时间的延长,TiAl3相形貌从小圆块状逐渐变为针状;伴随这一过程的发生,其细化能力逐渐下降。The influences of holding temperature （850℃, 900 ℃） and holding time （2 min, 10min, 30min and 45 min） on the morphology and the grain refining effects of TiA13 second phase were studied. The results show that with the increase of holding temperature and extending of holding time, the small blocky TiA13 particles become needle and the refining effect declines.

关 键 词：保温温度 保温静置时间 TiAl3相 细化能力 

分 类 号：TG113.11[金属学及工艺—物理冶金]