镁合金稀土转化膜技术是一种环保型镁合金表面处理新技术.通过正交实验对压铸镁合金AZ91D铈化学转化处理工艺进行了研究,并对膜层性能进行了测试.结果表明,铈转化处理工艺能够在压铸镁合金AZ91D表面形成均匀、完整的转化膜;膜层主要由Ce2O3、CeO2和MgO以及少量的Al2O3组成;铈转化处理提高了镁合金的耐腐蚀性能.
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