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

Abstract:

Article Preview

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.

Info:

Periodical:

Materials Science Forum (Volumes 544-545)

Edited by:

Hyungsun Kim, Junichi Hojo and Soo Wohn Lee

Pages:

291-294

DOI:

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

Citation:

S. J. Kim and J. I. Kim, "Effects of RPM, Bath Temperature and Anodizing Time in Anodizing for Mg-Al Alloy under Constant Current ", Materials Science Forum, Vols. 544-545, pp. 291-294, 2007

Online since:

May 2007

Export:

Price:

$35.00

In order to see related information, you need to Login.