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9 X65钢在海水中不同波形下腐蚀疲劳裂纹萌生和扩展前期断口微观形貌

Fig.9 Micromorphology of X65 steel at the early stage of corrosion fatigue crack initiation and propagation under sine wave (a), triangular waves (b) and positive sawtooth (c) loading waveforms in seawater