中文摘要：

通过在电解液中依次添加多种不同的无机添加剂，对铝合金进行微弧氧化处理，研究处理之后表面的微孔分布率以及孔径大小对耐磨、耐电化学腐蚀性能的影响。分别利用X射线衍射仪（XRD）、扫描电镜（SEM）、微型摩擦磨损仪和电化学测试系统对微弧氧化陶瓷层表面进行物相分析、形貌表征、耐磨损及耐电化学腐蚀性能的测试。结果表明，依次添加AhO，微粉，Na4P207，KOH，Na2W04·2H2O和Sic纳米颗粒后，陶瓷层孔隙率下降，孔径减小，并能使材料耐磨、耐电化学腐蚀性能提高：孔径大小是影响耐电化学腐蚀性能的主要因素。

英文摘要：

Several inorganic additives were added into the electrolyte to improve surface properties of the ceramic coating produced by micro-arc oxidation process on aluminum alloy. The phase con- stituents and microstructure of the prepared MAO coating were characterized by means of X-ray diffractometer （XRD） and scanning electron microscope （SEM） respectively. The abrasive and cor- rosion resistance of the MAO-coating are examined by miniature wear instrument and electrochem- ical measurement. As adding micro-powder of alumina, potassium hydroxide, sodium pyrophos- phate, sodium tungstate and nano-particles of silicon carbide in the electrolyte, the holes on MAO- coating become less and smaller, and thereby the properties of wear-resistance and corrosion resis- tance of the MAO-coating are enhanced.