Surface Characterization of Uncoated and CoNiFe Coated Mild Steel

Coating is widely used mainly to prevent from corrosion and enhance the physical and aesthetics properties. The study was conducted to characterize the surface properties of cobalt-nickel-iron (CoNiFe) alloy coating on mild steel. The coating was produced using the electrodeposition method. The electrodeposition method was carried out for 30 min with a current of 3.0 A. The average thickness of the alloy coating was 169 μm. CoNiFe coated mild steel resulted in a hardness value of 142.98 HV. Lower surface roughness was obtained for CoNiFe coated mild steel as compared to the uncoated mild steel. Slurry erosion wear test recorded a mass loss of only 0.1407 g. It can be concluded that deposited CoNiFe alloy coating could enhance the capabilities and surface performance of mild steel for various engineering applications.