“…Therefore, the fatigue strength of the metal can dramatically be reduced. [5][6][7] Micro-arc deposition of ceramic coatings, plasma electrolytic oxidation (PEO), and hard anodized ceramic coatings have been used in the past on light materials (including aluminum alloys) to enhance tribological properties and improve corrosion resistance. During the last decade, it has been shown that by using appropriate sealing processes and better quality of coatings surfaces, these hard oxides do not deteriorate the fatigue durability of aluminum Nomenclature: AA, Aluminum Alloy; EDM, Electrical Discharge Machining; FEM, Finite Element Method; MAO, Microarc Oxidation; OCP, Open Circuit Potential; PEO, Plasma Electrolytic Oxidation; SCE, Saturated Calomel Electrode alloys.…”