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

图5 DD91合金在不同应变幅IP-TMF过程第1 cyc及循环稳定时的迟滞回线

Fig.5 Typical hysteresis loops of first cycle and steady stage of the DD91 alloy during IP-TMF at mechanical strain amplitudes of 0.5% (a), 0.6% (b), 0.8% (c), and 0.9% (d)