粉末高温合金FGH4720Li在近服役温度下的组织演变规律

刘超, 姚志浩, 郭婧, 彭子超, 江河, 董建新

Microstructure Evolution Behavior of Powder Superalloy FGH4720Li at Near Service Temperature

LIU Chao, YAO Zhihao, GUO Jing, PENG Zichao, JIANG He, DONG Jianxin

图4 FGH4720Li合金在730℃下时效不同时间后B-γ'Ⅱ相形貌特征

Fig.4 Morphology characteristics of B-γ'Ⅱ in FGH4720Li alloy after ageing at 730oC for 30 h (a), 100 h (b), 200 h (c), and 300 h (d)