Exploration of the effect of chloride ion concentration and temperature on pitting corrosion of carbon steel in saturated Ca(OH)2 solution

Samin Sharifi-Asl, Feixiong Mao, Pin Lu, Bruno Kursten, Digby Donald Macdonald

Research outputpeer-review

64 Scopus citations


Passivity breakdown on carbon steel, has been studied and the data are interpreted in terms of the point defect model. An increase in temperature from 25°C to 85°C results in a decrease in localized corrosion resistance according to a linear relationship between the critical breakdown voltage, Eb, and log (chloride activity) for all chloride concentrations. The linear dependence of the passivity breakdown potential on the square root of potential scan rate (ν1/2), as predicted by the PDM, yields an estimate of the critical areal concentration of condensed cation vacancies at the metal/film interface that leads to the passivity breakdown.

Original languageEnglish
Pages (from-to)708-715
Number of pages8
JournalCorrosion Science
StatePublished - 1 Sep 2015

ASJC Scopus subject areas

  • General Chemistry
  • General Chemical Engineering
  • General Materials Science

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