Development of Electroplated Ni-Zn-P alloy Coatings and Ni Zn P/Nano SiC Nanocomposite Coating from a New Bath and their Corrosion Properties

In the present study a new electroplating bath for the deposition of Ni-Zn-P nickel-based alloy coatings and Ni-Zn-P/nano SiC nickel-based nanocomposite coatings on low carbon steel substrates was introduced. The optimum bath composition was found through comparing the amount of coating cracks taken by SEM. Also a comparison between the corrosion behavior of alloy coatings obtained from bath with different concentrations of phosphoric acid and nano composite coating in 3.5%wt NaCl solution was investigated using tofel and impedance curves.