couche de corrosion extérieure

CONT: Une forme de corrosion active est normalement localisée entre le noyau métallique de l'objet et sa couche corrodée extérieure.

CONT: As copper corrodes during burial, the inner corrosion layer that forms is often red cuprite and gray-green nantokite, and the outer corrosion layer is usually blue-green basic copper carbonates ...