Pitting Corrosion of Nickle

Abstract

<p>The pitting corrosion of nickel has been investigated using potentio-static techniques, optical and scanning electron microscopy. The effect of grain size, cold work, annealing procedure and chlorine ion concentration has been investigated and analyzed from the point of view of the pitting susceptibility and passivity of nickel. It has been shown that electrochemical data must be supplemented by metallographic observations for a complete appreciation of the pitting phenomenon.</p>