Crevice Geometry

The crevice gap, depth, and the surface ratios of materials can all affect the degree of crevice corrosion. Tighter gaps have been known to increase the rate of crevice corrosion of stainless steels in chloride environments. This has been attributed to the reduced volume of electrolyte that becomes acidified resulting in a higher rate of attack. The larger crevice depth and greater surface area of metals will generally increase the rate of crevice corrosion.