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Preparation and Properties of Chrome-Free Colored Na3AlF6 Conversion Coating on Aluminum Alloy

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Abstract:

By adding tannic acid and film-forming accelerator in the treatment solution containing titanium and zirconium ions, a golden conversion coating on the surface of aluminum alloy was prepared. The main component and corrosion resistance of the conversion coating were characterized by means of EDS, SEM, XRD and electrochemical workstation. The conversion coating was golden and showed as uniform cubical crystal. results also showed that the main component of the conversion coating was Na3AlF6. In potentiodynamic polarization test, the corrosion current density of the aluminum alloy decreases to 0.083 A•cm-2 from 5.894 A•cm-2, which indicated an obvious improvement of corrosion resistance.

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Periodical:

Advanced Materials Research (Volumes 490-495)

Pages:

3527-3530

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.490-495.3527

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Online since:

March 2012

Authors:

Ai Hua Yi, Wen Fang Li, Jun Du, Song Lin Mu

Keywords:

Aluminium Alloy, Conversion Coating, Corrosion Resistance, Tannic Acid

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© 2012 Trans Tech Publications Ltd. All Rights Reserved

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References

[1] M. Okido, R. Ichino, S. J. Kim and S. K. Jang. Nonferrous Met. Soc. China 19(2009). p.892.

Google Scholar

[2] S. A. Salman, R. Ichino. and M. Okido, Chem. Lett. 36(2007). p.1024.

Google Scholar

[3] S. Verdier, N. vander Laak. and F. Dalard. Surf. Coat. Technol. 200(2006). p.2955.

Google Scholar

[4] M. A. Smit, J. A. Hunter. and J. D. B. Sharman. Corros. Sci. 46(2004). p.1713.

Google Scholar

[5] J. H. Nordlien, J. C. Walmsley. and H. Osterberg. Surf. Coat. Technol. 153(2002). p.72.

Google Scholar

[6] O. Lunder, C. Simensen. and Y. Yu. Surf. Coat. Technol. 184(2004). p.278.

Google Scholar

[7] F. Andreatta, A. Turco. and I. de Graeve. 201(2007). p.7668.

Google Scholar

[8] J. J. Zhang, W. F. Li. and J. Du. Chin. Sci. Bull. 55(2010). p.3345.

Google Scholar

[9] X.W. Yu, C. N. Cao. and Z.M. Yao. Corros. Sci. 43(2001) p.1283.

Google Scholar

[10] J. Hu, X. H. Zhao. and S. W. Tang. Appl. Surf. Sci. 253(2007). p.8879.

Google Scholar

[11] M. Dabala, K. Brunelli, E. Napolitani. and M. Magrini. Surf. Coat. Technol. 172(2003). p.227.

Google Scholar

[12] M. Zhao, S. S. Wu, J. R. and Luo, Y. Fukuda. Surface & Coatings Technology. 200(2006). p.5407.

Google Scholar

[13] Liu N H, Li W F. and Du J. J Funct. Mater(Chinese). S3(2010). p.572.

Google Scholar

[14] B. R. W. Hinton. J. Alloys Compd. 180(1992). p.15.

Google Scholar

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