Repassivation potential refers to an electrochemical property of a metal that describes the degree of decreasing current from increasing current in a highly negative electrode. ... Passivation involves applying an outer layer to a metal to protect it from harmful reactions such as corrosion.

What is repassivation?

Repassivation occurs when the chemical conditions or electrochemical potential required for active behavior can no longer be maintained within the crevice, and a passive oxide film is regrown on the corroding surfaces.

What is corrosion potential?

Corrosion potential is a mixed potential (also an open-circuit potential or rest potential) at which the rate of anodic dissolution of the electrode equals the rate of cathodic reactions and there is no net current flowing in or out of the electrode.