Improving Corrosion Resistance in Magnesium and its alloys

Abstract: The corrosion resistance of magnesium or magnesium parts depends on similar factors that are critical to other metals. However, because of the electrochemical activity of magnesium, the relative importance of some factors is greatly amplified. In this review, the corrosion characteristic of Mg and Mg alloys are described. Fundamental aspects of magnesium corrosion such as general corrosion, galvanic corrosion, pitting, and corrosion fatigue are reviewed. The factors that control the corrosion behaviour of Mg and Mg alloys are discussed in some detail. Finally, the more recently developed corrosion science and engineering underpinning various surface treatment methods such as electrochemical plating, conversion coating, anodising, gas-phase coating, organic coating, electrolytic plasma oxidation for magnesium alloys are described.

Keywords: Rust, Corrosion, Magnesium, Magnesium alloys, Iron rust.