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7 正错配度Co-Al-W基单晶高温合金高温拉伸蠕变过程中的微观组织演变[98]

Fig.7 Microstructural evolutions during the tensile creep process of a Co-Al-W-based single crystal superalloys with the positive misfit at 900oC and 420 MPa[98] (Insets show the γ/γ' microstructures during the creep process, and the red circles indicate the topological inversed microstructure. σ—stress)