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Journal of Materials Science

, Volume 42, Issue 8, pp 2879–2885 | Cite as

Short-term corrosion behavior of galvanized coatings in natural waters of the Greek territory

  • N. Pistofidis
  • G. Vourlias
  • G. Stergioudis
Article

Abstract

The corrosion behavior of hot-dip galvanized steel immersed in domestic and seawater was investigated after an exposure period up to 10 days. The examination of the coatings was accomplished with optical microscopy, scanning electron microscopy and X-ray diffraction. From this investigation it was deduced that the corrosion process in domestic water is slow and mainly proceeds through pitting corrosion, while the corrosion phenomena in seawater are more intense. The main mechanisms in this environment are pitting and intergranular corrosion. In both waters the Cl and the O2− ions diffuse in the coating up to the Fe/Zn interface. Especially in seawater the Cl ions seem to be very aggressive.

Keywords

Corrosion Product Domestic Water Intergranular Corrosion Galvanize Coating Delta Phase 
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.

Notes

Acknowledgements

This project was partially financed by the Greek Ministry of National Education through the program Pythagoras I (project no 21906).

References

  1. 1.
    American Galvanizers Association (2000) Hot-dip galvanizing for corrosion protection of steel products. American Galvanizers Association, ColoradoGoogle Scholar
  2. 2.
    Zhang XG (1996) Corrosion and electrochemistry of zinc. Plenum Press, New YorkCrossRefGoogle Scholar
  3. 3.
    Marder AR (2000) Prog Mat Sci 45:191CrossRefGoogle Scholar
  4. 4.
    Nevison DCH (1987) ASM handbook, vol. 13 – Corrosion. ASM International, New YorkGoogle Scholar
  5. 5.
    Mitrakas M (2001) Water qualitative characteristics and treatment. Tziolas, Thessaloniki (in Greek)Google Scholar
  6. 6.
    Hine F (1985) Electrode processes and electrochemical engineering. Plenum Press, New YorkCrossRefGoogle Scholar
  7. 7.
    Otero E, Royela JJ (1993) Corr Sci 34:1581CrossRefGoogle Scholar
  8. 8.
    Vourlias G, Pistofidis N, Stergioudis G, Pavlidou E, Tsipas D (2004) Phys Stat Sol A 201:1518CrossRefGoogle Scholar
  9. 9.
    Fontana MG (1986) Corrosion engineering. McGraw-Hill, New YorkGoogle Scholar
  10. 10.
    Reumont G, Vogt JB, Iost A, Foct J (2001) Surf Coat Tech 139:265CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media, LLC 2007

Authors and Affiliations

  1. 1.Physics DepartmentAristotle University of ThessalonikiThessalonikiGreece

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