Purpose The purpose of this study is to examine the impact of MoS 2 on the microstructure and characteristics of micro-arc oxidized (MAO) ceramic coatings created on ZK60 magnesium alloy through the addition of varying concentrations of MoS 2 particles to the electrolyte, aiming to enhance the corrosion resistance of magnesium alloy. Design/methodology/approach The surface morphology, roughness and phase composition of the coatings were analyzed using scanning electron microscopy, a hand-held roughness tester and an X-ray diffractometer, respectively, and the corrosion resistance of the MAO coatings prepared by the addition of different contents of MoS 2 particles was tested and analyzed using an electrochemical workstation. Findings The results demonstrate that MoS 2 /MgO composite coatings have been successfully prepared on the surface of magnesium alloys through micro-arc oxidation. Furthermore, the corrosion resistance of the ZK60 magnesium alloy prepared with the addition of 1.0 g/L MoS 2 was the best compared to the other samples. Originality/value MoS 2 particles were able to penetrate the coatings successfully during the micro-arc oxidation process, acting as a barrier in the micropores to prevent the corrosion medium from touching the surface, thus improving the corrosion resistance of the sample. The electrochemical workstation was used to study the corrosion resistance of the MoS 2 /MAO coating on the ZK60 magnesium alloy.
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Chen et al. (2024) studied this question.
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