深海钢铁材料的阴极保护技术研究及发展

Research and Development of Cathodic Protection for Steels in Deep Seawater

综述深海环境中溶解氧、温度、pH值、碳酸盐及压力等对钢铁材料的阴极保护及钙质沉积层形成过程的影响。对国内外深海钢铁材料的阴极保护研究工作进行总结,介绍深海阴极保护参数的设计及应注意的因素,认为提高初始电流密度和阴极保护联合涂层是深海阴极保护的重要保护措施。最后对现阶段深海阴极保护研究中的不足及发展方向进行探讨。

The influences of dissolved oxygen, temperature, pH, carbonate and pressure in deep seawater on the cathodic protection of steel materials and the formation of calcareous deposits were reviewed. Meanwhile, overseas and domestic research status on the cathodic protection for steel materials in deep seawater was summarized. Furthermore, the parameters of the deep seawater cathodic protection design were introduced. It was proposed that it was an important measure to increase the initial current density for deep seawater cathodic protection and also with the coating. Finally, the inadequacies of the research currently on the deep seawater cathodic protection and the development direction were discussed.