Figure 4. Schematic illustration of the corrosion of magnesium in an aqueous environment:45 (A) The dissolution of magnesium via the anodic reaction. The cathodic reaction increases the pH and produces H2, while hydrolysis reduces the pH. Intermetallic particles act as cathodic sites and consume the electrons produced by the anodic reaction. (B) Chloride ions in the solution attack and dissolve the Mg(OH)2 film.
