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在铈盐溶液中用阴极电解的方法沉积铝合金铈转化膜，用电化学测试、腐蚀实验、ＳＥＭ和ＥＤＡＸ等分析手段研究了转化膜的性能．结果表明，铈转化膜的形貌组成和耐蚀性能与铝合金表面状态和阴极是否发生析氢反应关系密切，要想获得性能良好的铈转化膜必须抑制氢气在阴极上的析出．
The cerium conversion coating was deposited on the cerium salt solution by cathodic electrolysis. The electrochemical properties of the conversion coating film were studied by means of electrochemical test, corrosion test, SEM and EDAX. The results show that the morphology and corrosion resistance of the cerium conversion coating are closely related to the surface condition of the aluminum alloy and the hydrogen evolution reaction of the cathode. To obtain the cerium conversion coating with good performance, the deposition of hydrogen on the cathode must be restrained.