采用氟锆酸工艺在AA6061铝合金表面制备出氧化锆转化膜,用扫描电镜和能谱仪分析了氧化锆转化膜的组织形貌和结构,采用电化学方法和中性盐雾试验研究了氧化锆转化膜的耐蚀性能.结果表明,制备出的氧化锆转化膜为无色膜,主要由Zr和Al的氧化物组成.氧化锆转化膜的耐腐蚀性能优异.涂覆环氧树脂漆或聚氨酯漆后的涂层可以通过1500h的中性盐雾试验,氧化锆转化膜可以用作铝合金的涂漆前预处理膜.
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