为了消除铬酸盐处理六价铬的危害，室温下在5052铝合金表面制备了环保型Ti-Ce转化膜。通过正交试验确定了转化液的最佳组成：1．0g／LCe（NO3）3·6H2O，4．0g／LNaF，4．0g／LTi（SO4）2，1．5g／LH2O2，2．0g／LEDTA；同时采用单因素法研究了转化液pH值对转化膜厚度的影响，采用中性盐雾试验考察了转化膜的耐蚀性，并通过扫描电子显微镜和能谱仪分析了转化膜的微观形貌和成分。结果表明：Ti—Ce转化膜通过了96h的中性盐雾测试；转化膜均匀且缝隙较少，主要含有C，O，F，Al，Ti，Ce等元素，不合有害物。
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