微弧氧化及其在镁合金腐蚀防护领域的研究进展

Research Progress of Microarc Oxidation for Corrosion Prevention of Mg-alloys

简要综述了微弧氧化(MAO)及其火花放电机理研究的发展历程。重点根据近年来MAO在镁合金腐蚀防护领域的研究结果,详细综述了电源特性、工作模式、电参数、电解液、后处理、前处理等MAO工艺的进展情况,并指出了今后的发展趋势。同时,也提出了MAO技术在镁合金表面防护领域研究所存在的问题和建议。

This paper reviewed the development history of microarc oxidation （MAO） technique and the mechanism related with spark discharge process, with emphasis on the corrosion prevention for Mg- alloys in the past two decades. Various aspects of MAO coating of Mg-alloys and recent progress were summarized in detail, such as power types, operating modes, electrical parameters, electrolyte solutions, post- and pre-treatments. And the problems and suggestions of MAO technique for corrosion prevention of magnesium alloys were presented in the end.