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首页> 外文期刊>Journal of Materials Engineering and Performance >A Study on Atmospheric Corrosion of 304 Stainless Steel in a Simulated Marine Atmosphere
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A Study on Atmospheric Corrosion of 304 Stainless Steel in a Simulated Marine Atmosphere

机译：模拟海洋大气中304不锈钢的大气腐蚀研究

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摘要

The atmospheric corrosion behavior of 304 stainless steel in a simulated marine atmosphere has been investigated using scanning electron microscope, optical microscope, x-ray photoelectron spectroscopy (XPS), and electrochemical measurements. The experimental results indicate that the main corrosion type of 304 stainless steel in a simulated marine atmosphere is pitting corrosion and the initiation of pits is associated with the dissolution of MnS inclusion. The maximum pit depth of 304 stainless steel increased in linear relationship with the extension of corrosion time. XPS results reveal that the corrosion products possess more hydroxide, and the ratio of [Cr]/{[Cr]+[Fe]} in the corrosion products gradually increases with the increasing time. The protective ability of corrosion products formed on 304 stainless steel has also been discussed.
机译：使用扫描电子显微镜，光学显微镜，X射线光电子能谱（XPS）和电化学测量研究了304不锈钢在模拟海洋大气中的大气腐蚀行为。实验结果表明，在模拟海洋环境中，304不锈钢的主要腐蚀类型是点蚀，而点蚀的产生与MnS夹杂物的溶解有关。 304不锈钢的最大凹坑深度与腐蚀时间的延长呈线性关系。 XPS结果表明，腐蚀产物中氢氧化物较多，腐蚀产物中[Cr] / {[Cr] + [Fe]}的比例随时间的增加而逐渐增加。还讨论了在304不锈钢上形成的腐蚀产物的防护能力。

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