一般认为交流电对金属的腐蚀过程具有加速作用,但我们发现,在直流电位基础上叠加适当波形、幅值和频率的交流电对不锈钢进行载波钝化,尔后再进行适当后处理可使钝化膜的稳定性提高,我们曾就不经后处理的载波钝化过程进行过探讨,本文着重探讨钼酸盐后处理对载波钝化膜表面状态和化学稳定性改善的作用机理。 AC is generally believed that the metal corrosion process has accelerated the role, but we found that the DC potential superimposed on the basis of the appropriate waveform, amplitude and frequency of AC stainless steel carrier passivation, and then after the appropriate post-treatment can passivation film We have discussed the carrier passivation process without post-processing, this article focuses on the mechanism of molybdate post-treatment on the carrier passive film surface state and the improvement of chemical stability mechanism.