两种高代次镍基单晶高温合金热机械疲劳中的再结晶行为

赵鹏, 谢光, 段慧超, 张健, 杜奎

Recrystallization During Thermo-Mechanical Fatigue of Two High-Generation Ni-Based Single Crystal Superalloys

ZHAO Peng, XIE Guang, DUAN Huichao, ZHANG Jian, DU Kui

图3 沿[11¯0]轴观察的变形样品中孪晶A和孪晶B的微观结构(第三代单晶高温合金)

Fig.3 Microstructures of twin lamellae on twin plane A and twin plane B in deformed samples viewed along [11¯0] zone axis (The third-generation single crystal superalloy) (a) bright-field (BF) TEM image and selected area electron diffraction (SAED) pattern (inset) of twin A (b) BF TEM image and SAED pattern (inset) of twin B (c) HAADF-STEM image of twin lamellae (d) aberration-corrected HAADF-STEM image of dislocations at the twin lamellae