钢在海水中不同腐蚀带点蚀行为的研究

Pitting Behavior of Steels to Different Corossion Zones in Seawater

分析探讨了碳钢、低合金钢在全浸区、潮差区和飞溅区的点蚀行为及规律。结果表明,点蚀速度在腐蚀初期发展较快,以后趋于稳定。低合金钢在不同海水腐蚀区带的耐点蚀性并不总优于碳钢,钢在不同的腐蚀区带表现出不同的点蚀行为及规律。造成这种特征的原因是环境因素和合金元素共同作用的结果。

The pitting behavior and regulation of steels to different corrosion zones in seawater were discussed. The results showed that the rate of pitting developed quickly at the corrosion early days, then inclined to stabilization. The pitting resistance of low-alloy steels was not more than that of carbon steels in different corrosion zones. Steels presented different pitting behavior and regulation in different corrosion zones, which was the reason of the environment factors and alloy elements.