A Study on Atmospheric Corrosion of 304 Stainless Steel in a Simulated Marine Atmosphere
A Study on Atmospheric Corrosion of 304 Stainless Steel in a Simulated Marine Atmosphere
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DOI：
10.1007/s11665-015-1544-8
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发表时间：
2015-05
影响因子：
2.3
通讯作者：
W. Lv;Chen Pan;W. Su;Zhenyao Wang;Shinian Liu;C. Wang
中科院分区：
文献类型：
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作者：
W. Lv;Chen Pan;W. Su;Zhenyao Wang;Shinian Liu;C. Wang
采用扫描电镜、光学显微镜、X射线光电子能谱（XPS）和电化学测试等方法研究了304不锈钢在模拟海洋大气中的腐蚀行为。结果表明，304不锈钢在模拟海洋大气中的腐蚀主要为点蚀，点蚀的形成与MnS夹杂物的溶解有关。304不锈钢的最大点蚀深度随腐蚀时间的延长呈线性增加。XPS分析结果表明，腐蚀产物中含有较多的氢氧化物，且随着腐蚀时间的延长，腐蚀产物中[Cr]/{[Cr]+[Fe]}的比值逐渐增大。对304不锈钢腐蚀产物的保护能力进行了讨论。
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.