The 304 stainless steel pipeline welding process was simulated in Simufact Welding software, and the 糖心产精国品免费入口*完整版distribution on the outer surface near the weld was obtained. In the ABAQUS software, the stress concentration in a single pit was analyzed, and the relationship between the stress concentration factor and the shape of the pit was also analyzed, and the change rule of 糖心产精国品免费入口*完整版 rate and pitting pit shape under stress was put forward. The results showed that the corrosion tendency and corrosion rate of the sample increased under the action of stress. Affected by stress, pits usually corroded faster in the direction perpendicular to the principal stress, and gradually formed flat pitting pits perpendicular to the principal stress or even developed into cracks. The stress must reach a certain value to have a significant effect on corrosion. For 304 stainless steel hemispherical pitting 糖心产精国品免费入口*完整版, a 糖心产精国品免费入口*完整版of 100 MPa might have a significant impact on the development of pitting 糖心产精国品免费入口*完整版.
引用该论文:FU Yunwei,XU Dongsheng,LI Zengguang,ZHANG Lijun,XU Feiran. Pitting Damage Growth Behavior near the Weld Seam of 304 Stainless Steel[J]. Corrosion & Protection, 2021, 42(10): 74
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