Pitting corrosion

Pitting corrosion is a localized form of corrosive attacks. Pitting corrosion forms holes or pits on the metal surface.

Generally, metallic corrosion involves the loss of metal at a spot on an exposed surface. Corrosion occurs in various forms ranging from uniform attacks over the entire surface to severe local attacks.

Pitting corrosion is a localized form of corrosive attacks. Pitting corrosion forms holes or pits on the metal surface. It perforates the metal while the total corrosion, measured by weight loss, might be rather minimal. The rate of penetration may be 10 to 100 times that of general corrosion depending on the aggressiveness of the liquid. Pitting occurs more easily in a stagnant environment.





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