Author(s)

V.G. DeGiorgi

Abstract

Invited paper Galvanic corrosion prediction of bimetallic connections V.G. DeGiorgi Mechanics of Materials Branch, Naval Research , CASL4 ABSTRACT Computational simulations using boundary element techniques are used to determine the galvanic system generated current density and electrical potential distributions. Straight pipe and step connections between pipes of different diameters are evaluated for Copper-Nickel and Inconnel piping systems containing seawater. Computational results are compared with analytical and experimental results. INTRODUCTION Galvanic corrosion results from the difference in rest potential of two metals. The equilibrating of the potentials is dependent on the polarization response of each material, the initial difference in rest potential, the electrical conductivity of the surrounding medium and the relative surface area of the two materials. Polarization response is affected by many environm

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