Abstract
An experiment was performed on galvanic corrosion of cast iron-stainless steel couple in 0.016% NaCl solution, and the distribution of the potential in the electrolyte and the current density across the galvanic couple were measured. The distribution of potential within the electrolyte was described by the Laplace's equation with nonlinear boundary conditions, which were enforced based on experimentally determined polarization curves. This boundary value problem was solved by the boudary element method using the Newton-Raphson iterative numerical procedure. It was shown that the computational results agreed well with the experimental data.
