在此基础上，本文主要分析了工艺参数对稀土转化膜成膜厚度、表面形貌、耐蚀性的影响。

Based on this, the technological parameter to become film thickness, the superficial appearance to the rare earth transformation membrane, the corrosion resistance influence has been analyzed.

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利用浸渍法在2024铝合金表面上获得了金黄色的稀土转化膜，确定了成膜的最佳工艺条件。

A golden conversion film was obtained on the surface of aluminum alloy 2024 by immersion process. The suitable conditions of technology were established.

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在成膜三阶段基础上提出了稀土转化膜的成膜模型；同时给出各阶段阻抗谱图等效电路及其阻抗表达式。

Based on the three stages the film formation model was proposed, meanwhile, the EIS equivalent circuit and the impedance expressions in different stages were also presented.

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