Surface modification of zinc with an oxime for corrosion protection in chloride medium

The surface treatment of zinc was done with different concentrations of an oxime (2e)-2-(hydroxylamino)-1,2-diphenylethanol molecule by the immersion method. the electrochemical corrosion studies of surface-treated zinc specimens were performed in aqueous sodium chloride solution (1 m,ph 5.0) at different temperatures in order to study the corrosion mechanism. the recorded electrochemical data indicated a basic modification of the cathodic corrosion behavior of the treated zinc resulting in a decrease of the electron transfer rate. the zinc samples treated by immersion in the inhibiting organic solution presented good corrosion resistance. using scanning electron microscopy (sem),it was found that a protective film was formed on the surface of zinc. © 2013 ganesha achary and y. arthoba naik.