Depending on the environment developed in the crevice and the nature of the metal, the crevice corrosion can take a form of:
* pitting (i.e., formation of pits), but note pitting and crevice corrosion are not the same phenomenon,
* filiform corrosion (this type of crevice corrosion that may occur on a metallic surface underneath an organic coating),
* intergranular attack, or, 
* stress corrosion cracking.