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研究了氧化皮－碳钢电偶体系中ＭｏＯ４２－的缓蚀效果，并通过碳钢阳极极化曲线和氧化皮阴极极化曲线分析了ＭｏＯ４２－的缓蚀机理。结果表明，ＭｏＯ４２－是通过强烈抑制氧化皮－碳钢电偶体系中碳钢的阳极极化过程而抑制碳钢腐蚀的，缓蚀效果很好；碳钢的表面状况对ＭｏＯ４２－的作用效果有很大影响。当在钢表面存在腐蚀产物和阳极电流时，ＭｏＯ４２－的缓蚀率降低，但达到稳定的时间缩短。
The corrosion inhibition effect of MoO42- in the scale-carbon steel galvanic couple system was studied. The corrosion inhibition mechanism of MoO42- was analyzed by the anodic polarization curve and scale cathodic polarization curve of carbon steel. The results show that MoO42- inhibits the corrosion of carbon steel by strongly inhibiting the anodic polarization of carbon steel in the scale-carbon steel galvanic system, and the corrosion inhibition effect is very good. The effect of the surface condition of Mo steel on MoO42- Great influence. When corrosion products and anodic current exist on the steel surface, the corrosion inhibition rate of MoO42- decreases but the stabilization time is shortened.