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通过对３０４不锈钢在较高电位下过钝化和二次钝化的稳态过程和电化学交流阻抗（ＥＩＳ）的分析，认为不锈钢过钝化和二次钝化现象与膜／溶液（ｆ／ｓ）界面上的电化学反应有密切关系，并通过理论模型分析，解释了过钝化和二次过钝化膜在高电位下溶解速度高，而在开路自腐蚀电位下反而有较好的稳定性这一现象．
By analyzing the steady-state process and electrochemical impedance spectroscopy (EIS) of 304 stainless steel over passivated and passivated at higher potential, it is considered that the passivation and secondary passivation of stainless steel and the f / s), and through the theoretical model analysis, it is explained that the passivation and the secondary passivation film have high dissolution rate under the high potential, but better under the open-circuit corrosion potential Stability of this phenomenon.