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7 TiC-GH4975热等静压态试样经不同温度热压缩后不同区域截面形貌的SEM像

Fig.7 Cross-sectional SEM images of TiC-GH4975 HIPed samples after hot compression at 1160 oC (a, c, e) and 1200 oC (b, d, f) in the center (a, b), near the end face (c, d), and in the end face (e, f)