稀土钝化处理是近年来国内外研究开发的一种金属表面无铬钝化处理新技术,具有无毒无污染和防腐蚀效果好的特点,可望成为传统铬酸盐钝化法的主要替代技术之一.本文对文献所报道的稀土钝化技术的工艺方法和成膜原理进行综述,并介绍了稀土转化膜在钢铁、铝、锌、镁、锡、铜等金属或合金上的防蚀作用效果及耐蚀机理.并对该技术的应用前景作了展望.
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