Mathematical Studies of Galvanic Corrosion

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Abstract
The expressions for the potential and current density distribution have been derived for the two mathematically similar corrosion problems, (a) tiny anodes buried in infinite cathodes, and (b) tiny foreign eathodic inclusions in a metal. The implication of using equal polarization parameters has been discussed. When the critical dimension of the tiny electrode becomes smaller than the polarization parameter, corrosion attack and the interfacial potential become more uniform over the galvanic cell. Figures and perspective drawings made to scale are included to illustrate the effect of polarization on the distribution of potential in the corrodent and the diminishing variation of corrosion attack.

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