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10 X65钢在海水中不同加载波形下腐蚀疲劳裂纹扩展中期断口形貌

Fig.10 Fracture morphology of X65 steel at the middle stage of corrosion fatigue crack propagation under sine wave (a), triangular waves (b) and positive sawtooth (c) loading waveforms in seawater