Indian Institute of Technology, Kanpur-208 016.
Nanocrystalline nickel (nc-Ni) coatings were produced by pulse electrodeposition using Watts bath with sodium citrate and saccharin added as grain refining agents. The electrochemical nature of nc-Ni coatings, evaluated in 1M H2SO4 solution by electrochemical impedance spectroscopy. The corrosion rate of bulk nickel was lower than that of nc-Ni after stabilisation of free corrosion potential.
Nickel, electroplating, corrosion, electrochemical impedance spectroscopy, nanocrystalline nickel
