Effects of RPM, Bath Temperature and Anodizing Time in Anodizing for Mg-Al Alloy under Constant Current

Seong Jong Kim; Jeong Il Kim

doi:10.4028/www.scientific.net/MSF.544-545.291

Paper Titles

Effects of Homogenization Treatment on Thermoelectric Properties of Ba₈Al₁₆Si₃₀
p.275

Effects of Isothermal Heating Process and Rare Earth Elements Addition on the Mechanical Properties of Semi-Solid Formed Mg-5%Zn Alloys
p.279

Effects of Manganese on Microstructure and Mechanical Properties of AZ31 Magnesium Alloy Processed by Differential Speed Rolling
p.283

Effects of Processing Factors on the Mechanical Properties of PBO Filament/ Epoxy Composite Materials
p.287

Effects of RPM, Bath Temperature and Anodizing Time in Anodizing for Mg-Al Alloy under Constant Current
p.291

Effects of Samarium on Microstructure and Mechanical Properties of Mg-Al-Ca Alloys
p.295

Electromagnetic Absorption Behaviors of Ferromagnetic Fe-Cr Alloy Powder and Polymer Composites in the Radio Frequency Range
p.299

Electromagnetic Properties of Bi System Superconductor
p.303

Evaluation of Indentation Test for Measuring Young’s Modulus of Cancellous Bone
p.307

HomeMaterials Science ForumMaterials Science Forum Vols. 544-545Effects of RPM, Bath Temperature and Anodizing...

Effects of RPM, Bath Temperature and Anodizing Time in Anodizing for Mg-Al Alloy under Constant Current

Abstract:

We studied the effects of solution RPM, bath temperature, and time in anodizing AZ91 under a constant current density of 750 mA/cm2 in a 1 M NaOH solution. In general, increasing the anodizing time, RPM, and temperature of the bath improved the corrosion resistance. The thickness of the anodic oxide film likely grew by increasing the time required to generate the active dissolution reaction. When anodizing at 750 mA/cm2, we evaluated a 300–3600-s range in anodizing time, 0–1500 RPM, and 296–373 K bath temperatures, and determined that 3600 s, 1500 RPM, and 373 K comprised the optimum conditions.