Microstructure and Properties of Electrodeposited Ni–Cr Coatings Containing ZrO2 Particles

Ni—Cr—ZrO2 nano-composites are electrodeposited from sulfate electrolyte and a comparison is made with Ni—ZrO2 in terms of structure and properties. The coatings have been electrodeposited on cylindrical parts made of copper. The influence of the various experimental conditions has been considered by varying the concentration. The different electrodeposited layers are characterized by various analytical techniques: adhesion quality, corrosion resistance in sea water, Vickers microhardness, X-ray diffraction, morphology by scanning electron microscopy Followed by a microanalysis (EDX). The coatings prepared have a very good adhesion, are more resistant to corrosion, have a good hardness, an homogeneous and compact morphology and exhibit a high degree of co-deposition of particles incorporated in the nickel-chromium matrix.