两种“W替Re”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8 界面位错网组态及其形貌演化示意图

Fig.8 Schematic diagram of interfacial dislocation networks configuration and morphology evolution (a) octagonal dislocation networks (b) hexagonal dislocation networks (c) hexagonal dislocation networks of 8.0W+1.5Re alloy at 1070℃/137 MPa