 Exfoliation corrosion (metallurgy)

Exfoliation corrosion is a type of localized corrosion that occurs primarily in metals, particularly aluminum and its alloys. It is characterized by the separation of thin layers or flakes from the surface of the metal, resembling the peeling of paint or layers of skin. This form of corrosion typically occurs in the presence of moisture, electrolytes, or aggressive environments, especially when the metal is subjected to tensile stresses.