Abstract

A Mg(OH)2-ZrO2 composite coating was fabricated on AZ61 Mg alloy by a one-step in-situ methanol-assisted hydrothermal process. The surface morphology, phase composition, chemical composition, and corrosion resistance of the Mg(OH)2-ZrO2 coating were characterized. The composite coating exhibited a uniform compact homogenous structure. The electrochemical and immersion results confirmed that the corrosion resistance of the Mg(OH)2-ZrO2 coating was significantly enhanced compared with the Mg(OH)2 coating.

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