Acta Metallurgica Sinica (English Letters) ›› 2011, Vol. 24 ›› Issue (1): 18-22.DOI: 10.11890/1006-7191-111-18

• 研究论文 • 上一篇    下一篇

Titanium-zirconium-phosphonate hybrid film on 6061 aluminum alloy

王双红1,刘常升1,王磊2   

  1. 1. 东北大学材料与冶金学院
    2. 东北大学
  • 收稿日期:2010-06-07 修回日期:2010-09-16 出版日期:2011-02-25 发布日期:2011-02-25
  • 通讯作者: 王双红

Titanium-zirconium-phosphonate hybrid film on 6061 aluminum alloy

Shuanghong WANG, Lei WANG, Changsheng LIU   

  1. Key Laboratory for Anisotropy and Texture of Materials, Ministry of Education, Northeastern University,Shenyang 110819, China
  • Received:2010-06-07 Revised:2010-09-16 Online:2011-02-25 Published:2011-02-25
  • Contact: Shuanghong WANG

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Abstract: Three titanium-zirconium-phosphonate hybrid films were formed on AA6061 aluminum alloy by immersing in fluorotitanic acid and fluorozirconic acid based solution containing different phosphonic acids for protective coatings of aluminium alloy. The corrosion resistance of three hybrid films as the substitute for chromate film were evaluated and compared. The neutral salt spray test was explored, the immersion test was conducted and electrochemical test was also executed. The hybrid films exhibited well-pleasing corrosion resistance and adhesion to epoxy resin paints. It was found out that the hybrid films could efficiently be a substitute for chromate based primer over aluminium alloy.

Key words: Aluminum alloy, Titanium-zirconium-phosphonate, Hybrid film, Corrosion resistance