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Abstract
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Magnesium and its alloys demonstrate excellent features such as machinability, high strength to weight ratio, and damping capacity, which has expanded their applications to industries such as electronics, aerospace, and transportation. Magnesium has bone-like mechanical properties making it an ideal candidate for many biomedical applications. However, the high reactivity of magnesium makes it prone to corrosion attacks, even in mildly corrosive environments. So far, various coatings have been employed to protect magnesium and its alloys against corrosion. Plasma electrolytic oxidation (PEO) is a relatively new coating process that can successfully enhance the corrosion resistance of certain metals and their alloys.
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