Abstract
Metals and alloys are protected from the corrosive environments in which they are used by the presence of a passive film on the surface. However, the passivity of a metal surface cannot be preserved if mechanical forces rupture this protective film from the surface. Thus, during corrosive wear, the process of wear essentially destroys the passive film, which then leaves a bare metal surface for the corrosion reaction to start taking place once again. In an industrial application of a metal, the process of passivation, depassivation, and repassivation kinetics must be completely understood if the life of a metal part is to be prolonged. The purpose of this article is to study the kinetics involved in the corrosive wear of Fe-Cr-Ni alloys by the scratch technique and to determine the relationship between the electrochemical response of these alloys and the near-surface microstructures.
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