An electrochemical investigation on the effect of the chloride content on CO 2 corrosion of API-X100 steel

Faysal Fayez Eliyan, Farzad Mohammadi, Akram Alfantazi

Research output: Contribution to journalArticlepeer-review

60 Scopus citations

Abstract

This research argues that the corrosion rate for high strength steel in CO 2-saturated solutions reaches a maximum at a threshold chloride content. At 20°C, the corrosion rates increased from 60μA/cm 2 in 5g/L solutions to a maximum of 185μA/cm 2 in 15g/L solutions, and then became less in the more concentrated solutions. The anodic dissolution accelerated at 90°C and the cathodic reactions decelerated with adding 10vol.% oil where the chloride content effect remained relatively the same. Some EIS experiments demonstrated an agreement with the polarization results without confirming that threshold effect of chloride on charge transfer.

Original languageBritish English
Pages (from-to)37-43
Number of pages7
JournalCorrosion Science
Volume64
DOIs
StatePublished - Nov 2012

Keywords

  • A. API-X100
  • A. Chloride
  • A. CO
  • A. Oil
  • B. EIS
  • B. Polarization

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