Microstructure properties of pulse plated Ni–Co alloy

Ni–Co alloys were pulse plated in three different baths, namely sulfamate, Watts and chloride baths, in order to investigate the cross-section homogeneity and microstructure by means of GDOES and TEM. Furthermore, microhardness measurements were carried out to find the link between the mechanical properties and the cross-section characteristics of the alloy coatings. According to this work, the Ni–Co alloy layers deposited from sulfamate and Watts baths were homogeneous in the whole cross section and showed significantly lower microhardness than those of, grown from chloride containing bath.