The influence of dislocation on corrosion of low alloy steel in a low H₂S sour corrosion environment was investigated experimentally (immersion corrosion test and polarization measurement) and theoretically (ESM-RISM simulation). The results showed that dislocation increases corrosion weight loss by promoting the anodic dissolution reaction. The Fe atom solubilities of two kinds of Fe slab models simulating conditions with/without lattice defects were evaluated, and the high Fe solubility of the model with lattice defects was clarified. Based on these experimental and theoretical findings, the mechanism by which dislocation influences anodic dissolution was discussed.

中文翻译：

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低H2S酸性环境中位错对碳钢酸腐蚀的影响

_{对位错对低H 2} S 酸腐蚀环境中低合金钢腐蚀的影响进行了实验研究（浸没腐蚀试验和极化测量）和理论研究（ESM-RISM 模拟）。结果表明，位错通过促进阳极溶解反应增加了腐蚀失重。对模拟有/无晶格缺陷条件的两种铁板模型的铁原子溶解度进行了评估，阐明了有晶格缺陷模型的高铁溶解度。基于这些实验和理论发现，讨论了位错影响阳极溶解的机制。