Relation between the Contact Corrosion Rate and Polarization Characteristics in Multiple Electrodes

Abstract

As the first step for studying the intergranular corrosion of alloys,the galvanic corrosion current of zinc,contacted with iron,a simple model of contact phases in alloys,was analysed graphically and represented as a function of the ratio of anodic and cathodic polarizations,the cathode area,the heat of activation of the cathode metal in hydrogen electrode reaction and the ion concentration of the cathode metal in solution.