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5 不同加载条件下DZ411合金的断口形貌

Fig.5 Fracture morphology of DZ411 alloy under different loading conditions (a) T =1223 K, σa=0, σm=200 MPa, (b) T =1223 K, σa=130 MPa, σm=150 MPa, (c) T =1223 K, σa=130 MPa, σm=150 MPa, (d) T =1203 K, σa=130 MPa, σm=200 MPa