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9. GH4975合金1180 ℃均匀化后γ′相的SEM像

Fig.9. SEM images of γ′ phase of GH4975 alloy sample homogenized at 1180 ℃ for 5 h (a) and 50 h (b)