What is localised corrosion? Corrosion

As the name suggests, localised corrosion occurs in specific locations rather than across the entire exposed surface. This could be due to more aggressive conditions existing in a specific location (crevice corrosion) or where there are defects or damage to the protective passive film layer. These forms of localised corrosion can combine, for instance pits forming within a crevice which then lead to an acceleration of the corrosion mechanism.