The effect of phosphate on MAO of AZ91D magnesium using AC power source
作者： Q. Wen , F.-H. Cao , Y.-Y. Shi , Z. Zhang , J.-Q. Zhang
关键词:
摘要: A rapid and convenient anodization technology with AC power source to obtain the MAO films formed on magnesium alloy AZ91D in phosphate bath (base electrolyte+ Na3PO4) with or without aluminate and silicate was studied. The corrosion resistance of the anodic films was studied by electrochemical impedance spectroscopy (EIS) and potentiodynamic polarization techniques and the microstructure and composition of films were examined by SEM and XRD. The results show that Na3PO4can promote the occurrence of sparking …
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