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9 Co-Al-W基单晶高温合金γ'相中形成的不同类型的层错交互作用结构[91]

Fig.9 Different types of stacking fault (SF) interaction configurations in Co-Al-W-based single crystal superalloys[91] (a) TEM image (b-d) atomic resolution HAADF-scanning transmission electron microscopy (HAADF-STEM) images of V-type (b), T-type (c), and X-type (d) (Inset in Fig.9c shows an enlarged view of the red square, indicating a deviation between the SISF-2 and SISF-2′ planes)