Detecting corrosion resistance of coated steel rebars by Electrochemical technique (EIS)

J. Ryou*, S. Shah

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

2 Scopus citations


Electrochemical impedance spectroscopy (EIS) is one of the electrochemical techniques used in materials science. The present measurements are used to evaluate the corrosion resistance of new types of coated steel rebar used in reinforced concrete. In this study, Si-based coating materials are used and evaluated, because adding Si to metals and alloys, including steel, generally increases their corrosion, oxidation, and erosion resistance. The result suggests that electrochemical impedance spectroscopy may be useful for monitoring corrosion activity on coated steel rebars. Based upon impedance changes, it appears that the silicon powder coating bonds well to the steel, and that the coating has a good performance.

Original languageEnglish (US)
Pages (from-to)345-349
Number of pages5
JournalSurface Review and Letters
Issue number4
StatePublished - Aug 2006


  • Coating
  • Corrosion resistance
  • Electrochemical impedance spectroscopy
  • Steel rebar

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Materials Chemistry


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