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6 超声冲击疲劳试样断口形貌 |
Fig.6 Fatigue fracture morphologies of welded joint with ultrasonic impact treatment: (a, b) fatigue crack source; (c) crack propagation zone; (d) final fracture zone |