超声冲击改善P355NL1钢焊接接头腐蚀疲劳性能研究
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王永祥, 何柏林, 李力
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Improvement of Corrosion Fatigue Performance of P355NL1 Steel Welded Joint by Ultrasonic Impact
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WANG Yongxiang, HE Bolin, LI Li
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表1 焊态试样在水介质中的疲劳寿命
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Table 1 Fatigue lifes of joint specimens in water medium
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Sample number | Stress range | Cycle times | Fracture location |
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1 | 225 | 8.00×105 | Weld toe | 2 | 215 | 3.50×106 | Weld toe | 3 | 205 | 2.69×106 | Weld toe | 4 | 195 | 4.88×106 | Weld toe | 5 | 185 | 1.63×107 | Weld toe | 6 | 175 | 5.83×106 | Weld toe | 7 | 165 | 1.80×107 | Weld toe | 8 | 155 | 2.25×107 | Weld toe | 9 | 145 | 3.12×107 | Weld toe | 10 | 140 | 6.12×107 | Weld toe | 11 | 135 | 1.59×108 | Weld toe | 12 | 130 | 4.40×108 | Weld toe | 13 | 120 | 1.00×109 | Not broken |
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