Structure and Properties of Zn/MoS2 Composite Coatings Produced by Electrochemical Reduction

The report presents research efforts on the synthesis of Zn/MoS 2 composite coatings by electrochemical reduction from a sulphate-borate bath containing MoS 2 powder as a dispersion phase at various concentrations.The structure of the Zn/MoS 2 composite coatings was characterised and the effect of MoS 2 particles embedded on their microhardness was evaluated.The coatings produced are characterized by a compact, homogeneous structure and a good connection to a steel substrate.The incorporation of MoS 2 particles into the zinc matrix has an influence on the structure and morphology of the Zn/MoS 2 composite coatings.It was found that the presence of MoS 2 particles increases surface roughness along with coating hardness.The incorporation of the MoS 2 particles into the zinc matrix slightly improves the corrosion resistance compared to Zn coatings, making the corrosion potential shift towards more electropositive values.