先进镍基粉末高温合金FGH4108在不同应力条件下的蠕变行为

李新宇, 白佳铭, 张浩鹏, 李晓鲲, 贾建, 刘常升, 刘建涛, 张义文

Creep Behavior of Advanced Powder Metallurgy Nickel-Based Superalloys FGH4108 Under Different Stress Conditions

LI Xinyu, BAI Jiaming, ZHANG Haopeng, LI Xiaokun, JIA Jian, LIU Changsheng, LIU Jiantao, ZHANG Yiwen

图10 在700 ℃不同应力条件下粗晶和细晶试样断口断裂源区形貌的SEM像

Fig.10 SEM images showing the fracture surface of the fracture source regions of the coarse grain (a-c) and fine grain (d-f) samples under creep stresses of 780 MPa (a, d), 810 MPa (b, e), and 900 MPa (c, f) at 700 oC (Insets in Figs.10a and d show the enlarged images of square areas)