奥氏体耐热钢<strong>Sanicro25</strong>蠕变行为和断裂特征

奥氏体耐热钢Sanicro25蠕变行为和断裂特征

吕德超, 曹铁山, 程从前, 周彤彤, 赵杰

Creep Behavior and Fracture Characteristic of Austenitic Heat-Resistant Steel Sanicro25

LV Dechao, CAO Tieshan, CHENG Congqian, ZHOU Tongtong, ZHAO Jie

图11 不同温度下Sanicro25钢的真实应力指数和激活能

Fig.11 True stress exponents and activation energy of Sanicro25 steel at different temperatures (a) Log-log plot of the minimum creep rate vs. effective stress (b) Semi-log plot of the ${\dot{ε}}_{m}$ vs. the reciprocal temperature