难变形高温合金GH4975的铸态组织及均匀化
向雪梅, 江河(), 董建新, 姚志浩
As-Cast Microstructure Characteristic and Homogenization of a Newly Developed Hard-Deformed Ni-Based Superalloy GH4975
XIANG Xuemei, JIANG He(), DONG Jianxin, YAO Zhihao

图4. 铸态GH4975合金在1160 ℃进行30%变形量热压缩后内部裂纹的OM像和EBSD像

Fig.4. OM image of cracks (a) and EBSD image of intergranular cracks (b) in as-cast GH4975 samples after hot deformation (1160 ℃, 30%, 0.1 s-1)