Volume 31 Issue 01
Jan.  2005
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Zhu Liqun, Liu Huicong, Li Weiping, et al. Zinc alloyed coating on AZ91D magnesium alloys[J]. Journal of Beijing University of Aeronautics and Astronautics, 2005, 31(01): 8-12. (in Chinese)
Citation: Zhu Liqun, Liu Huicong, Li Weiping, et al. Zinc alloyed coating on AZ91D magnesium alloys[J]. Journal of Beijing University of Aeronautics and Astronautics, 2005, 31(01): 8-12. (in Chinese)

Zinc alloyed coating on AZ91D magnesium alloys

  • Received Date: 28 Jul 2003
  • Publish Date: 31 Jan 2005
  • In order to improve the corrosion resistance and micro-hardness of AZ91D magnesium alloys, its surface was treated by zinc alloys. The characterization of the above-prepared coating on AZ91D magnesium alloys was studied, andits surface image, cross-section image, XRD image, corrosion resistance abilityand micro-hardness were also researched. The anodic polarization curve and electrochemical impedance spectrum of the coating on AZ91D magnesium alloys were examined before and after the samples being zinc alloyed. All results show that the zinc alloyed coating on AZ91D magnesium alloys is uniform and fine, and it is made up of Mg7Zn3, Mg and Zn. This coating has better corrosion resistance and good protective characterization than the magnesium alloys, and it has relatively higher micro-hardness than the magnesium alloys.

     

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