超声冲击改善P355NL1钢焊接接头腐蚀疲劳性能研究

王永祥, 何柏林, 李力

Improvement of Corrosion Fatigue Performance of P355NL1 Steel Welded Joint by Ultrasonic Impact

WANG Yongxiang, HE Bolin, LI Li

图2 疲劳试样S-N曲线

Fig.2 S-N curves of three fatigue specimens