增材制造TiAl合金的研究进展
陈玉勇, 时国浩, 杜之明, 张宇, 常帅

Research Progress on Additive Manufacturing TiAl Alloy
CHEN Yuyong, SHI Guohao, DU Zhiming, ZHANG Yu, CHANG Shuai
图3 Ti-47Al-2Cr-2Nb合金热处理前后的SEM像[14]
Fig.3 SEM images of Ti-47Al-2Cr-2Nb alloy[14](a) as-built
(b) after heat treatment of 4 h at 1250oC followed by 4 h at 900oC