Paper Title:
Structures of Zinc-Manganese Phosphate Film and Organic Coating on Magnesium Alloys
  Abstract

The solution mainly containing Zn2+, Mn2+, Ni2+ and H2PO4- was used to prepare phosphate film on AZ31 magnesium alloys. The process was adjusted to the following parameters, PH value 3~4, temperature 25~40°C, treatment time 3~10 min. Surface characteristics and microstructure of the phosphate film were also investigated by SEM and XRD. The film can fit for organic coatings prepared with electrophoresis and painting.It is found that the coatings adhered well to the phosphate film, and the anti-corrosion abilities were improved. The coating has no change in 3% NaCl solution for 360h and in neutral salt fog for 168h, respectively.

  Info
Periodical
Materials Science Forum (Volumes 610-613)
Main Theme
Edited by
Zhongwei Gu, Yafang Han, Fusheng Pan, Xitao Wang, Duan Weng and Shaoxiong Zhou
Pages
880-883
DOI
10.4028/www.scientific.net/MSF.610-613.880
Citation
W. Lan, J. C. Sun, A. R. Zhou, D. F. Zhang, "Structures of Zinc-Manganese Phosphate Film and Organic Coating on Magnesium Alloys ", Materials Science Forum, Vols. 610-613, pp. 880-883, 2009
Online since
January 2009
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$32.00
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