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    Corrosion protection enhancement On aluminum alloy and magnesium alloy by Mo-Ceo2 conversion coating
    (University Mohammed Premier Oujda, 2021) Ziouche, A.; Hammouda, A.; Boucherou, N.; Mokhtari, M.; Hafez, B.; Elmsellem, H.; Abaidia, S.
    In this paper, Mo-CeO2 conversion coating developed to protect Aluminum 2024 alloy and Magnesium AZ31 alloy against corrosion. The cerium oxide incorporated in Molybdenum conversion coating, which considered as a promising alternative to replace chromate compounds. The corrosion efficacy was improving and characterized by polarization curves and EIS measurements. The structural and the microstructural Mo-Ce O2 conversion coating was characterized by AFM, SEM and XRD and the mechanical proprieties was determined by Nano indentation. The presence of molybdenum and oxide of cerium confirmed with good physical and mechanical proprieties. The presence of Ce O2 in the conversion coating had a beneficial effect on the corrosion resistance of the both materials