加载波形对X65钢腐蚀疲劳裂纹萌生及扩展的影响

王歧山, 李鸿瑾, 何川, 郑平, 陈旭

Effect of Loading Modes on Initiation and Propagation of Corrosion Fatigue Cracks of X65 Steel

WANG Qishan, LI Hongjin, HE Chuan, ZHENG Ping, CHEN Xu

图11 X65钢在空气中不同加载波形下疲劳断口侧面形貌

Fig.11 Side morphology of fatigue fracture of X65 steel in air under sine wave (a), triangular waves (b) and positive sawtooth (c) loading waveforms