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Abstract
Microarc oxidation (MAO), as a novel surface treatment, has demonstrated significant achievements both in academic research and in industrial application. Here, the electrical energy consumption and the role of the electrolyte during the MAO process are discussed. The corrosion resistance of MAO coatings on a magnesium alloy has been evaluated by salt spray test and electrochemical analysis. The wear resistance of MAO coating on an aluminium alloy has been tested by an abrasion technique. Finally, application prospects are discussed.