Crevice
corrosion is a form of localized corrosion and occurs
under the same conditions as pitting, i.e., in neutral
or acidic chloride solutions. However, attack starts
more easily in a narrow crevice than on an unshielded
surface. Crevices, such as those found at flange joints
or at threaded connections, are thus often the most
critical sites for corrosion.
