Numerical simulation on forgeability of TiAl based alloy square billet

被引：0
|
作者：
Lu, Bin [1 ]
Liu, Yong [1 ]
Qiu, Cong-Zhang [1 ]
机构：
[1] State Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, China
来源：
Fenmo Yejin Cailiao Kexue yu Gongcheng/Materials Science and Engineering of Powder Metallurgy | 2012年 / 17卷 / 01期
关键词：
Aluminum alloys - Computer software - Titanium alloys - Forging - Billets (metal bars) - Binary alloys - Numerical models;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The high temperature forging process of TiAl based alloy square billet was investigated by using a Deform-3D software. The effects of the corner radius (R) and the ratio of height to width (H/a) of the billet on effective strain and deformation uniformity were analyzed. The results demonstrate that deformation uniformity ratio increases with the decrease of the corner radius and the increase of the H/a ratio, the effective stress decreases with the increase of the H/a ratio, and when the ratio is over 2.1 double bumping will appear after forge. Forging experiment was employed based on the simulation work. Through using suitable R and H/a ratio the square billet with smooth face and homogeneous microstructure can be obtained.
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页码：83 / 88
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