增材制造难变形高温合金GH4975的裂纹形成及其愈合机制

叶献文, 姚志浩, 王洪瑛, 王子成, 张砻耀, 董建新

Crack Formation and Healing Mechanisms in Additively Manufactured Hard-Deformed Ni-Based Superalloy GH4975

YE Xianwen, YAO Zhihao, WANG Hongying, WANG Zicheng, ZHANG Longyao, DONG Jianxin

图9 热等静压态和打印态TiC-GH4975试样经不同温度热压缩后显微组织的SEM像

Fig.9 SEM images of TiC-GH4975 HIPed (a, c) and as-build (b, d) samples after hot compression at 1160 oC (a, b) and 1200 oC (c, d)