一种第四代镍基单晶高温合金的同相位热机械疲劳行为及损伤机制
谭子昊, 李永梅, 王新广, 赵浩川, 谭海兵, 王标, 李金国, 周亦胄, 孙晓峰

In-Phase Thermal-Mechanical Fatigue Behavior and Damage Mechanism of a Fourth-Generation Ni-Based Single-Crystal Superalloy
TAN Zihao, LI Yongmei, WANG Xinguang, ZHAO Haochuan, TAN Haibing, WANG Biao, LI Jinguo, ZHOU Yizhou, SUN Xiaofeng
表1 DD91合金在不同应变幅下IP-TMF断裂后的外表面最长裂纹尺寸及内部裂纹数量
Table 1 Maximum crack sizes on outer surface and numbers of internal crack of the DD91 alloy after IP-TMF fracture at different strain amplitudes
Strain amplitude %Maximum crack size on outer surface / μm

Number of internal crack

(Within 1 mm from crack surface)

0.5210.9232 ± 3
0.6151.4235 ± 4
0.827.2958 ± 5
0.949.1088 ± 7