Analysis on the Anodizing Process of AZ31 Magnesium Alloy in an Environmental Friendly Alkaline Electrolyte
2014 ◽
Vol 665
◽
pp. 128-131
Keyword(s):
AZ31 magnesium alloy was anodized in an environmental friendly electrolyte containing 50 g/l NaOH + 40 g/l Na2B4O7·10H2O + 60 g/l Na2SiO3·9H2O. The voltage transient was recorded in anodizing process. The surface morphology of anodizing film was examined by SEM. The corrosion resistance of the anodizing film was characterized by electrochemical impedance spectroscopy and potentiodynamic polarization techniques. The results show that the anodizing process can be divided to four stages according to the voltage transient. The anodizing film obtained at a current density of 20 mA·cm-2 for 15 minutes has the optimum corrosion resistance.
2015 ◽
Vol 814
◽
pp. 132-136
◽
2014 ◽
Vol 624
◽
pp. 77-81
2020 ◽
Vol 45
(40)
◽
pp. 20632-20646
◽
2021 ◽
Vol 112
(6)
◽
pp. 474-485