Potential-temperature (E-T) diagrams for iron, nickel, and chromium in sulfate solutions up to 473 K

Tirdad Nickchi, Akram Alfantazi

Research output: Contribution to journalArticlepeer-review

11 Scopus citations

Abstract

The electrochemical corrosion behavior of high purity iron, nickel, and chromium is evaluated in sodium sulfate solutions at temperatures up to 473 K. The thermodynamic stability regions of the species involved in the X H 2O system (X = Fe, Ni, Cr) were evaluated. The stability regions were presented in a new form of potential vs. temperature diagrams in specific solutions rather than conventional E-pH diagrams. The open circuit potential and polarization resistance experiment data were used to demonstrate the viability and usefulness of the newly developed diagrams.

Original languageBritish English
Pages (from-to)69-77
Number of pages9
JournalElectrochimica Acta
Volume104
DOIs
StatePublished - 2013

Keywords

  • High pressure corrosion
  • High temperature
  • Pourbaix diagrams
  • Thermodynamic calculations

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