铝合金微弧氧化膜白色斑点成因分析  

Analysis of white spot formation on the micro-arc oxidation coating of aluminum alloy

作　　者：王青[1] 裴舒[2] 白利红[1] 武海玲[1] 苗成[1] 

机构地区：[1]中国兵器科学研究院宁波分院,浙江宁波315103 [2]中国科学院长春光学精密机械与物理研究所,吉林长春130033

出　　处：《兵器材料科学与工程》2011年第4期70-72,共3页Ordnance Material Science and Engineering

摘　　要：用硅酸盐体系电解液进行铝合金微弧氧化时,氧化膜表面出现白色斑点状物,影响零件质量和外观,对这种白色斑点状物进行EDS和XRD成分测试,同时还对形成原因进行分析。结果表明,白色斑点状物是由SiO2聚集而成。When micro-arc oxidation coatings were formed on aluminum alloy in silicate system electrolyte, white spots often appear on the coating, and the quality and appearance of work piece will be impaired. The composition of the white spots was analyzed by EDS and XRD. It is found that the white spots is SiO2. Furthermore, the formation reason was analyzed.

关 键 词：铝合金 微弧氧化 SIO2 氧化膜 硅酸盐电解液 

分 类 号：TG174.45[金属学及工艺—金属表面处理]