DZ411合金的高温循环加载变形特征和寿命预测

智一恒, 周彤彤, 赵杰, 曹铁山, 程从前

Deformation Characteristics and Life Prediction of DZ411 Alloy under High Temperature Cyclic Loading

ZHI Yiheng, ZHOU Tongtong, ZHAO Jie, CAO Tieshan, CHENG Congqian

图2 DZ411合金在高温循环加载过程中的应变/应变速率-时间曲线

Fig.2 Strain/strain rate vs time curve of DZ411 alloy during high-temperature cyclic loading process (a, b) at T = 1223 K, different average stress conditions, (c, d) at σm = 200 MPa, different temperature conditions