Effect of the graphene oxide additive on the corrosion resistance of the plasma electrolytic oxidation coating of the {AZ31} magnesium alloy
By Zhao, Jingmao; Xie, Xiong; Zhang, Chen
Published in Corrosion Science
NULL
2017
Abstract
Abstract Graphene oxide (GO) was added into the electrolyte during the preparation of the plasma electrolytic oxidation (PEO) coating on {AZ31} magnesium alloy. The effects of the {GO} additive on the microstructure, phase composition, and corrosion resistance of the {PEO} coating were studied. The results demonstrated that {GO} successfully incorporated into the {PEO} coating and it was partially reduced to rGO during the {PEO} process. As a result, the number of micropores on the {PEO} coating was significantly decreased. Moreover, the electrochemical test revealed that the corrosion resistance of the {PEO} coating was markedly improved upon the incorporation of 2 g/L GO.
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