Integration of MoO2 Composite on the Micro-evolution and Anticorrosion Mitigation of Zn–Ni–MoO2 Thin Films Coating by Electrodeposition System

Zinc–nickel–molybdenum nano-composite coating was deposited on carbon steel substrate using electrolytic deposition technique. The MoO 2 integration into zinc–nickel matrix was investigated with reverence to particulate concentrations from 10 to 15 g/L, voltage 5–1.0 V and 1 A/dm 2 . The effect of the percentage variation of MoO 2 particle inclusion into the zinc–nickel lattices’ was seen, and surface morphology, with intermetallic phase transformation of the nano-composite were obtained using scanning electron microscopy coupled with energy dispersive spectroscopy. The corrosion behaviour and micro-hardness characteristics of the Zn–Ni–MoO 2 composite deposits were studied using linear polarization technique. The result shows that the incorporation of MoO 2 particles into the zinc–nickel matrix disperses evenly with increasing concentration of MoO 2 particle and significantly modified the crystal orientation of the Zn–Ni–MoO 2 deposit. A content of 10 g vol.% MoO 2 particle incorporated Zn–Ni–MoO 2 nano-composite deposit was found to obtained good corrosion, wear and better micro-hardness properties.