Method for self-repairing of damage to inorganic protective layer on metal surface

Abstract

Disclosed is a method for self-repairing of damage to an inorganic protective layer on a metal surface. The method includes: placing a metal with the inorganic protective layer having a damaged surface in a chloride ion solution, and performing self-repairing, wherein the metal with the inorganic protective layer comprises a metal substrate and a layered double hydroxide protective layer intercalated by acid anions covering a surface of the metal substrate; and the acid anions are selected from the group consisting of phosphate anions and molybdate anions.

Dependencies are inferred from the claim text.