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In an earlier pre-print we developed a variant of the point defect model thatcorrected a flaw in one of the defect reactions and to be specific reaction 3of the original point defect model was replaced by reaction 3prime of thevariant. Here we apply the corrected model to find the time evolution of thepassive current density and the barrier layer thickness. Though the functionalforms agree with the forms reported earlier by Macdonald and co-workers, thecomposition of the parameters differ significantly. This explains theexperimental success of the flawed model. This semblance is also manifested inthe diagnostics for the current transient involving the time-derivative of thecurrent density. The present theory will be useful for the correct analysis oftransients which result from switching the potential in the anodic or cathodicdirection from an initial steady state.

Passivity of Metals: Potential-Step Transients for Passive Current Density and Barrier Layer Thickness in the Point Defect Model