Abstract:

By orthogonal experiment screening,the molybdate-based multiple corrosion inhibitor has been composited.The corrosion inhibiting effect of molybdate composite corrosion inhibitor in sea ice melt water on Q235 carbon steel is studied by weight loss method,and polarization curve method.And the corrosion inhibiting effect of it in sea ice melt water with high concentration multiple(2-5 times) is verified.The results show that this molybdate-based inhibitor in sea ice melt water presents good effects of corrosion inhibition.The optimum inhibition rate of molybdate composite corrosion inhibitor is up to 99.35%,which functions as an anodic inhibitor.

Key words: sea ice melt water, carbon steel, molybdate, corrosion inhibitor, circulating cooling water

摘要：

通过正交试验筛选、复配以钼酸盐为主剂的多元复合缓蚀剂,以失重法和极化曲线法研究了该钼酸盐复合缓蚀剂在海冰融水中对Q235碳钢的缓蚀效果,并对其在高浓缩倍数(2~5倍)海冰融水中的缓蚀作用进行了验证。结果表明:该钼酸盐复合缓蚀剂在海冰融水中对碳钢的缓蚀效果良好,缓蚀率最高达到99.35%;该钼酸盐复合缓蚀剂为阳极抑制型缓蚀剂。

关键词: 海冰融水, 碳钢, 钼酸盐, 缓蚀剂, 循环冷却水

CLC Number: 

• TG174.42