Nano zinc – titanium – cerium Coating on BIS 2062 Boat building Carbon steel for Corrosion Protection

Abstract

The corrosion inhibition ability of three nano oxides,
zinc oxide, titanium oxide and cerium oxide coating
over BIS 2062 carbon steel was studied. Morphology
of the coating evaluated using SEM and AFM
techniques and it showed uniform coverage over the
surface and lower roughness than untreated steel.
Electrochemical measurement in 3.5% NaCl showed
3.5-fold increase in polarization resistance than bare
steel. The electrochemical impedance spectroscopy
data was exhibited comparable results as that of
linear polarization studies. The nano xode mixture
having 0.01% each of zinc and titanium and 0.02%
cerium showed adequate corrosion protection under
the marine environment.