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首页> 外文期刊>International Journal of Electrochemical Science >Evaluation of Anticorrosive Coatings on Carbon Steel in Marine Environments: Accelerated Corrosion Test and Field Exposure
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Evaluation of Anticorrosive Coatings on Carbon Steel in Marine Environments: Accelerated Corrosion Test and Field Exposure

机译：评估海洋环境中碳钢上的防腐涂层：加速腐蚀试验和现场暴露

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摘要

This study assesses the behavior of two paint systems applied to A-36 steel, commonly used to cover industrial structures in marine environments. Accelerated tests were carried out in a salt spray chamber with a maximum of 3000 hours of exposure, while other tests were conducted in the field in five areas in Chile over a period of two years. Coatings were assessed with measurements of thickness, adherence, and blistering. The behaviors of these coatings were assessed using electrochemical impedance spectroscopy (EIS techniques, measuring the evolution of an impedance module at 0.1 Hz. The results show that, after two years of exposure or after 3000 hours in the salt spray chamber, the two coatings still present adequate protective properties, with an impedance module value log |Z| greater than 106 ? cm2. However, for all tests, comparing C5MB and C5IB coating systems, the latter is always less protective for the steel.
机译：这项研究评估了两种用于A-36钢的涂料体系的性能，该体系通常用于覆盖海洋环境中的工业结构。加速试验是在盐雾室中进行的，暴露时间最长为3000小时，而其他试验则在两年中在智利五个地区的田间进行。通过测量厚度，附着力和起泡来评估涂层。使用电化学阻抗谱（EIS技术，在0.1 Hz下测量阻抗模块的演变）评估了这些涂层的行为。结果表明，在暴露两年或在盐雾室中暴露3000小时后，这两个涂层仍然具有足够的防护性能，阻抗模块的log | Z |值大于106？cm2，但是，对于所有测试，将C5MB和C5IB涂层系统进行比较，后者对钢的保护性总是较差。

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