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Relation Between Surface Preparation and Corrosion Resistance in Painted Steel Sheets

  • H. KobayashiEmail author
  • K. Morita
  • Y. Yamashita
  • Y. Kataoka
Conference paper
Part of the Lecture Notes in Civil Engineering book series (LNCE, volume 53)

Abstract

The surface of a painted steel material is periodically repainted to maintain its corrosion resistance by removing the rust and remaining paint films on the steel sheet using surface preparation. However, there are several unknown factors governing the relation between the surface state of steel sheet and its corrosion resistance. This study aims to investigate the effect of surface preparation on the corrosion resistance of a steel sheet. Herein, three types of steel sheets treated with different surface preparations were painted and their corrosion resistances were investigated by combined cyclic corrosion tests. The differences in the corrosion resistance among the painted sheets were investigated from the viewpoint of the surface free energy. Results show that the corrosion resistance of a painted steel sheet prepared using a zinc-plated steel wheel wire brush is better than those for a steel wheel wire brush and nickel-plated steel wheel wire brush. This finding suggests that the difference in the corrosion resistance based on the plated metal arises from the polar components at the steel surface.

Keywords

Combined cyclic corrosion test Surface free energy Polar component AC impedance method Equivalent circuit Electric double layer capacitance 

Notes

Acknowledgements

This work was supported by LIXIL JS Foundation (No.17-06).

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Copyright information

© Springer Nature Switzerland AG 2020

Authors and Affiliations

  • H. Kobayashi
    • 1
    Email author
  • K. Morita
    • 1
  • Y. Yamashita
    • 1
  • Y. Kataoka
    • 1
  1. 1.Industrial Research Center, Aichi Center for Industry and Science TechnologyKariya-shi, AichiJapan

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