γ' 相强化钴基高温合金成分设计与蠕变机理研究进展

冯强, 路松, 李文道, 张晓瑞, 李龙飞, 邹敏, 庄晓黎

Recent Progress in Alloy Design and Creep Mechanism of γ'-Strengthened Co-Based Superalloys

FENG Qiang, LU Song, LI Wendao, ZHANG Xiaorui, LI Longfei, ZOU Min, ZHUANG Xiaoli

图13 γ'相中层错附近合金元素偏析诱导缺陷类型转变模型[111]和与SISF相连的Shockley不全位错[104]

Fig.13 Segregation-assisted transformation from complex stacking faults (CSFs) to superlattice stacking faults (SSFs) (a)[111] and SISF bounding by a Shockley partial dislocation in the γ' phase (b)[104] (CESF—complex extrinsic stacking fault, Inset in Fig.13b shows the Burgers vector ( b ) obtained from the Burgers circuit analysis)