Study of corrosion resistance of anodized aluminium 6063

Authors

  • Karín Paucar Cuba Facultad de Ingeniería Química y Textil, Universidad Nacional de Ingeniería. Lima, Perú.
  • Hugo Rojas Flores Facultad de Ingeniería Química y Textil, Universidad Nacional de Ingeniería. Lima, Perú.
  • Abel Vergara Sotomayor Facultad de Ingeniería Química y Textil, Universidad Nacional de Ingeniería. Lima, Perú.

DOI:

https://doi.org/10.21754/tecnia.v22i2.77

Keywords:

aluminum, anodized, electrochemical impedance, acid salt spray

Abstract

 The study of the corrosion resistance of anodized on aluminum alloy (AA6063) in sulfuric acid to different times: 30, 45 and 60 min. was performed using electrochemical impedance spectroscopy (EIS) and the acid salt spray test (ASTM B287). The EIS’data and its correlation with the most appropriate equivalent circuits allowed to determine the parameters associated with the porous layer and the oxide layer protective barrier formed on the aluminum surface under study. Exposure of the samples anodized for a 250h salt spray acid allowed to observe changes in their mass. From the results obtained by EIS and the mass losses of the anodized samples was established that the anodized film of 45 minutes showed higher corrosion resistance compared to that obtained at 60 and 30 min, respectively. 

Downloads

Download data is not yet available.

References

[1] Ashby, M. F., Jones, D. R., “Engineering Materials”, vol. 2, 2da edición, Butterworth-Heinemann, (1998) 101.

[2] Safrany Pechiney, J. S., “Anodisation del aluminium et de ses alliages”, Centre de Recherches de Voreppe, 1630 (2001) pp. 1 - 26.

[3] Campbell, F. C., “Manufacturing Technology for Aerospace Structural Materials, 1ra. edición, Elsevier, (2006) 15 - 90.

[4] Brace, A., “The technology of Anodizing Aluminium”, 3ra.edición, (2000) 2.

[5] Habazaki, H., et al., “Nanoscale enrichments of substrate elements in the growth of thinoxide films”, Revista Corrosion Science, N° 39, pp. 731 - 737, (1997).

[6] Diggle, J. W., “Oxide and Oxide Films”, vol. 2, Marcel Dekker Inc., N. York 1973.

[7] De Laet, J., Terryn, H., Vereecken, J., “Development of an optical model for steady state porous anodic films on aluminium formed in phosphoric acid”, Revista Thin Solid Films, N° 320, pp. 241 - 252, (1998).

[8] Kim, Y. C., Quint, B., Kesler, R. W., Oelkurg, D., “Structructural properties of electrochemically designed porous oxide films on AlMg1”, Revista Journal of Electroanalytical Chemistry, N° 468, pp. 121 - 126, (1999).

[9] Feliu, S. Jr., González, J. A., López, E. V., “Characterisation of porous and barrier layers of anodic oxides on different aluminium alloys”. Revista Journal of Applied Electrochemistry, N°37, pp. 1027 – 1037, (2007).

[10] ASESAN., “Directrices de la Marca de Calidad de QUALANOD para el Anodizado del Aluminio en medio sulfúrico”, España (2004) 11.

[11] González Fernández, J. A., “Control de la Corrosión. Estudio y medidas por Técnicas Electroquímicas”. CENIM, Madrid 1989.

[12] Hitzig, J., Jeuttner, K., “AC-impedance mesurments on porous aluminium oxidefilms”, Revista Corrosion Science, N°24, pp. 945 - 952, (1984).

[13] Mansfeld, F., Kendig, M. W., “Evaluation of Anodized Aluminum Surfaces with Electrochemical Impedance Spectroscopy”, Revista Journal of the Electrochemical Society, N° 135, pp. 828 - 833, (1988).

[14] Moutarlier, V. ,Gigandet, M. P., Normand B., “EIS Characterization of anodic films formed on 2024 aluminium alloy, in sulfuric acid containing molybdate or permanganate species”, Revista Corrosion Science, N° 47, pp. 937, (2005).

[15] Huang, Y., Shih, H., “Evaluation of the corrosion resistance of anodized aluminum 6061using electrochemical impedance spectroscopy (EIS)”, Revista Corrosion Science, N° 50, pp. 3569 – 3575, (2008).

[16] Norma ASTM D1400., “Standard Test Method for Non destructive Measurement of Dry Film Thickness of Non conductive Coatings Applied to a Non ferrous Metal Base”, ASTM International, Filadelfia 2000.

[17] Norma ASTM B 244., “Standard Test Method for Measurement of Thickness of Anodic Coatings on Aluminum and of Other Non conductive Coatings on Non magnetic Basis Metals with Eddy-Current Instruments”, ASTM International, Filadelfia 2009.

[18] Norma ASTM B 287., “Standard Method of Acetic Acid-Salt Spray (Fog) Testing”, ASTM International, Filadelfia 1987.

[19] Sullivan, P. O., Wood, G. C., “Themorphology and mechanism of formations of porous anodic films on aluminium”, Revista Proceedings of the Royal Society A, N° 317, pp. 511 - 543, (1970).

Downloads

Published

2012-12-01

How to Cite

[1]
K. Paucar Cuba, H. Rojas Flores, and A. Vergara Sotomayor, “Study of corrosion resistance of anodized aluminium 6063”, TECNIA, vol. 22, no. 2, pp. 17–24, Dec. 2012.

Issue

Vol. 22 No. 2 (2012)

Section

Articles

License

Copyright (c) 2012 TECNIA

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

Articles published by TECNIA can be shared under the international Creative Commons license: CC BY 4.0. Permissions beyond this scope can be inquired via email at tecnia@uni.edu.pe.

Most read articles by the same author(s)