Effect of Metal Cations in Fresh Water on Surface Film Structure and Initial Corrosion of Mild Steel
Effect of Metal Cations in Fresh Water on Surface Film Structure and Initial Corrosion of Mild Steel
复制标题
淡水中金属阳离子对低碳钢表面膜结构和初始腐蚀的影响
DOI：
10.1149/07527.0059ecst
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发表时间：
2017
期刊：
影响因子：
--
通讯作者：
Sakairi Masatoshi
中科院分区：
文献类型：
--
作者：
Otani Kyohei;Sakairi Masatoshi
采用浸泡腐蚀试验、表面观察、质量变化和X射线光电子能谱（XPS）表面分析等方法，研究了金属阳离子对低碳钢在模拟淡水中腐蚀的影响。XPS分析表明，硬金属阳离子在低碳钢上沉淀，并在钢上形成氢氧化物。腐蚀试验结果表明，碳钢在淡水中的腐蚀速率与其表面氢氧化物膜的保护能力有关。提出了一种新的腐蚀指示剂，即由阳离子硬度X和摩尔体积比V组成的腐蚀指示剂，该指示剂可用于解释淡水中金属阳离子的腐蚀变化。
Effect of metal cations on the corrosion of mild steel in model fresh water was investigated by immersion corrosion tests with surface observations, mass changes, and surface analysis by X-ray photoelectron spectroscopy (XPS). XPS analysis showed that hard metal cations precipitate on the mild steel and form hydroxides on the steel. The results of corrosion test suggested that corrosion rate of mild steel in fresh water has a correlation with protective ability of hydroxide layer precipitated on the steel. A novel corrosion indicator, that consists of hardness of cation, X, and molar volume ratio,∆ V, is proposed, and it is shown that the indicator is useful for explaining the corrosion changes by metal cations in fresh water.