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首页> 外文会议>Pacific Rim International Conference on Advanced Materials and Processing(PRICM 5) pt.1; 20041102-05; Beijing(CN) >Effect of Thickness of Water Film on Atmospheric Corrosion Behavior of Carbon Steel
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Effect of Thickness of Water Film on Atmospheric Corrosion Behavior of Carbon Steel

机译：水膜厚度对碳钢大气腐蚀行为的影响

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摘要

Atmospheric corrosion for carbon steel was discussed with taking notice of the relation between the corrosion rate, CR, and the thickness of adsorbed water film, d, onto deposited sea salt. Amount of water adsorbed onto sea salt was measured under various conditions of amount of deposited sea salt, W_s, and relative humidity, RH. Derived concentration of the solution film was compared with that calculated thermodynamically. Corrosion amount of carbon steel specimens exposed for a month under various W_s and RH was measured and CR along with d were obtained for each condition. The relations of CR to d had the same tendency as is found on "moist corrosion" and "wet corrosion" in Tomashov's model; However, it showed a maximum CR = 0.29mm/y at d = 56μm, thicker than that reported by Tomashov.
机译：讨论了碳钢的大气腐蚀问题，并注意了腐蚀速率CR和沉积的海盐上吸附水膜厚度d之间的关系。在沉积海盐量W_s和相对湿度RH的各种条件下测量吸附到海盐上的水量。将溶液膜的衍生浓度与热力学计算的浓度进行比较。测量在各种W_s和RH下暴露一个月的碳钢样品的腐蚀量，并针对每种条件获得CR和d。 CR与d的关系具有与Tomashov模型中的“湿腐蚀”和“湿腐蚀”相同的趋势。但是，在d =56μm时，最大CR = 0.29mm / y，比Tomashov报道的要厚。

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