Author/Authors :
Lv، نويسنده , , Guohua and Chen، نويسنده , , Huan and Li، نويسنده , , Li and Niu، نويسنده , , Er-Wu and Pang، نويسنده , , Rui Huan and Zou، نويسنده , , Bin and Yang، نويسنده , , Si-Ze، نويسنده ,
Abstract :
Ceramic coatings oxidized for different time periods were prepared to characterize the plasma electrolytic oxidation (PEO) process of AZ91D magnesium alloy. The coatings were analyzed using scanning electron microscopy, X-ray diffraction, X-ray photoelectron spectroscope and potentiodynamic polarization measurement. The results show that the PEO coatings perform different growth behaviors at different PEO stages, and different morphologies are exhibited on α- and β-phase of Mg substrate. The corrosion resistance measurement predicates that within the first 30 min oxidation, coating oxidized for 20 min is the best corrosion resistant.
Keywords :
AZ91D magnesium alloy , Plasma Electrolytic Oxidation , morphology , Treated time
