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1 在T = 1223 K, σm = 250 MPa, σa = 130 MPa循环加载条件下的变形曲线

Fig.1 Deformation curve under cyclic loading test with T = 1223 K, σm = 250 MPa, σa = 130 MPa (a) overall stress-strain curve, (b) stress-strain curves of individual cycles in regions 1, 2, 3 of Fig.1a