Simulation of hot compression of Ti-Al alloy

被引：12
|
作者：
Huang, Jin-Song [1 ]
Huang, Lan [1 ]
Liu, Bin [1 ]
Zhang, Yong-Hong [1 ]
Zhang, Wei [1 ]
He, Xiao-Yu [1 ]
Liu, Yong [1 ]
机构：
[1] Cent S Univ, State Key Lab PM, Changsha 410083, Hunan, Peoples R China
来源：
INTERMETALLICS | 2007年 / 15卷 / 5-6期
关键词：
TiAl alloy; hot simulation; compression; can; macrostructure; microstructure;
D O I：
10.1016/j.intermet.2006.10.019
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Hot compressive experiments of Ti-45Al-7Nb-0.15B-0.4W (mole fraction, %) alloy canned by 45(#) carbon steel were conducted at 1050-1230 degrees C on Gleeble1500 hot simulator with nominal deformation of 30% and strain rate of 0.01 s(-1). The displacement-loading curves were obtained, and the macrostructure and microstructure were observed. The results show that the hot compressive temperature of TiAl alloy must be higher than 1050 degrees C and lower than 1230 degrees C with 45(#) steel can, and its optimum temperature is 1180 degrees C. The highest actual deformation of TiAl alloy canned by 45(#) steel is 50% with nominal deformation of 30%. The grains after being hotly compressed are flattened and elongated. (c) 2007 Published by Elsevier Ltd.
引用
收藏
页码：700 / 705
页数：6
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