Managing Crevice Corrosion

New components and systems should be designed to minimize areas where crevice corrosion may occur. Welded joints are preferable to fastened joints. Where crevices are unavoidable, metals with a greater resistance to crevice corrosion in the intended environment should be selected. Avoid the use of hydrophilic materials in fastening systems and gaskets. Crevice areas should be sealed to prevent the ingress of water. Also, a regular cleaning schedule should be implemented to remove any debris build up. Figure 11 illustrates several methods that may be implemented to decrease crevice corrosion.