Question

An oxidizing process used for aluminium and magnesium articles is called

Answer 1

An oxidizing process used for aluminium and magnesium articles is called ANODISING.
REASON:


Anodising is the process by which the natural film on aluminium is greatly increased in thickness. Aluminium metal is on the anodic side of the galvanic series. Its position is similar to zinc and magnesium, i.e it is readily oxidised. 

The oxide on aluminium is naturally corrosion resistant, very hard, abrasion resistant, an insulator and very tenacious. In its natural form the oxide film on aluminium is less than 0.50 microns thick.