Recent Progress in Materials Used Towards Corrosion Protection of Mg and Its Alloys

Magnesium has little resistance to corrosion and therefore its production and use are quite limited. the problem of corrosion associated with these alloys has been alleviated to some extent by the advantages obtained from fine coatings. an additional dense barrier against corrosion is created, using coatings obtained from solgel. as an alternative for crbased conversion coatings, rareearth elementsbased ones are been increasingly investigated for mg and its alloys due to being ecofriendly. because of chemical inertness, low friction, and high hardness, diamondlike carbon (dlc) coatings have exhibited the best protection for mg and its alloys. in this review, we shed light on recent advancements in novel coatings for mg alloys including hybrid, rareearth conversion, composite polymeric (polymer composite is a multiphase material in which reinforcing fillers are integrated with a polymer matrix), and dlc coatings.