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Materials Science

, Volume 42, Issue 5, pp 573–578 | Cite as

Corrosion protection of aluminum alloys by inhibiting pigments

  • V. I. Pokhmurs’kyi
  • L. Kwiatkowski
  • I. M. Zin’
  • S. B. Lyon
  • L. M. Bilyi
  • M. B. Ratushna
Article

Abstract

We show that calcium monohydrophosphate can serve as an efficient inhibiting component of anticorrosive coatings applied on an aluminum-copper alloy. It has been established that the charge-transfer resistance of D16T alloy under the influence of CaHPO4 solution approaches the value characteristic of a medium with strontium chromate. Calcium monohydrophosphate simulates the behavior of strontium chromate inhibitor, retarding the cathodic and anodic corrosion reactions on the surface of aluminum alloys.

Keywords

Aluminum Alloy Zinc Phosphate Pigment Extract Corrosive Solution D16T Alloy 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. 1.
    Z. Szklarska-Smialowska, “Pitting corrosion of aluminum,” Corr. Sci., 41, No. 9, 1743–1767 (1999).CrossRefGoogle Scholar
  2. 2.
    J. R. Scully, T. O. Knight, R. G. Buchheit, and D. E. Peebles, “Electrochemical characteristics of the Al2Cu, Al3Ta and Al3Zr intermetallic phases and their relevancy to the localized corrosion of Al alloys,” Corr. Sci., 35, 185–195 (1993).CrossRefGoogle Scholar
  3. 3.
    G. S. Chen, M. Gao, and R. P. Wei, “Microconstituent-induced pitting corrosion in aluminum alloy 2024-T3,” Corrosion, 52, 8–15 (1996).CrossRefGoogle Scholar
  4. 4.
    R. P. Wei, C. M. Liao, and M. Gao, “A transmission electron microscopy study of constituent-particle-induced corrosion in 7075-T6 and 2024-T3 aluminum alloys,” Metal. Mat. Trans., Ser. A: Phys. Metallurgy Mat. Sci., 29, 1153–1160 (1998).Google Scholar
  5. 5.
    I. M. Zin, R. L. Howard, S. J. Badger, et al., “The mode of action of chromate inhibitor in epoxy primer on galvanized steel,” Progr. Org. Coat., 33, No. 3–4, 203–210 (1998).CrossRefGoogle Scholar
  6. 6.
    F. Mansfeld, “Use of electrochemical impedance spectroscopy for the study of corrosion protection by polymer coatings,” J. Appl. Electrochem., 25, 187–202 (1995).Google Scholar
  7. 7.
    B. A. Boucamp, “A nonlinear least squares fit procedure for analysis of immittance data of electrochemical systems,” Solid State Ionics, 20, 31–44 (1986).CrossRefGoogle Scholar
  8. 8.
    E. P. M. van Westing, G. M. Ferrari, and J. Y. W. de Wit, “The determination of coating performance using electrochemical impedance spectroscopy,” Electrochim. Acta, 39, No. 7, 899–910 (1994).CrossRefGoogle Scholar
  9. 9.
    G. S. Frankel and R. L. McGreery, “Inhibition of Al alloy corrosion by chromates,” in: The Electrochemical Society Interface, Winter (2001), pp. 34–36.Google Scholar
  10. 10.
    M. Kendig, S. Jeanjaquet, R. Addison, and J. Waldrop, “Role of hexavalent chromium in the inhibition of corrosion of aluminum alloys,” Surf. Coat. Technol., 140, No. 1, 58–66 (2001).CrossRefGoogle Scholar
  11. 11.
    H. F. Clay and J. H. Cox, “Chromate and phosphate pigments in anti-corrosive primers,” JOCCA, 56, 13–20 (1973).Google Scholar
  12. 12.
    A. Amirudin, C. Barreau, R. Hellouin, and D. Thierry, “Evaluation of anti-corrosive pigments by pigment extract studies, atmospheric exposure and electrochemical impedance spectroscopy,” Progr. Org. Coat., 25, No. 4, 339–355 (1995).CrossRefGoogle Scholar
  13. 13.
    A. I. Kirgintsev, L. N. Rushnikova, and V. G. Lavrent’eva, Solubility of Inorganic Matter in Water: Handbook [in Russian], Khimiya, Leningrad (1972).Google Scholar
  14. 14.
    Y. Tanizawa, K. Sawamura, and T. Suzuki, “Reaction characteristics of dental and synthetic apatites with Al3+and La3+ ions in acidic solutions,” J. Chem. Soc. Faraday Trans., 86, No. 24, 4025–4035 (1990).CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media, Inc. 2006

Authors and Affiliations

  • V. I. Pokhmurs’kyi
    • 1
  • L. Kwiatkowski
    • 2
  • I. M. Zin’
    • 1
  • S. B. Lyon
    • 3
  • L. M. Bilyi
    • 1
  • M. B. Ratushna
    • 1
  1. 1.Karpenko Physicomechanical InstituteUkrainian Academy of SciencesLviv
  2. 2.Institute of Precision MechanicsWarsawPoland
  3. 3.The University of ManchesterManchesterUK

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