两种“WRe”型低成本第二代镍基单晶高温合金的高温持久变形机制
周章瑞, 吕培森, 赵国旗, 张剑, 赵云松, 刘丽荣

Stress Rupture Deformation Mechanism of Two "Replacement of Re by W" Type Low-cost Second-generation Nickel Based Single Crystal Superalloys at Elevated Temperatures
ZHOU Zhangrui, LV Peisen, ZHAO Guoqi, ZHANG Jian, ZHAO Yunsong, LIU Lirong
图7 合金在982℃/248 MPa和1070℃/137 MPa条件下的主要持久变形机制示意图
Fig.7 Schematic diagram of stress rupture deformation mechanism at 982℃/248 MPa and 1070℃/137 MPa (a) (b) 982℃/248 MPa (c) (d) 1070℃/137 MPa (a) (c) the movement of dislocations in γ' matrix (b) (d) dislocations distribution in γ' phase