High-temperature oxidation paths, according to the oxide-alloy phases equilibria in the ternary Ni-Co-Fe system

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2 Citations (Scopus)

Abstract

The physicochemical properties of the Ni-Co-Fe-O system are important to the high-temperature oxidation of the Ni-Co-Fe based alloy, such as superalloys and high-alloy steels. The equilibrium phase relations between the Ni-Co-Fe alloy and its oxide at elevated temperature were systematically investigated using experimental and assessment method. The iso-pO2 lines and iso-concentration lines of oxides in the entire range of the oxygen partial pressure and composition at 1673 K were evaluated, and the high-temperature oxidation path of the Ni-Co-Fe alloy was qualitatively examined. Using the thermodynamic findings allows to ascertain the high-temperature oxidation phenomena of the Ni-Co-Fe based alloy.

Original languageEnglish
Pages (from-to)114-123
Number of pages10
JournalCorrosion Science
Volume139
DOIs
Publication statusPublished - 2018 Jul 15

Keywords

  • Cobalt
  • High temperature corrosion
  • Nickel
  • Oxidation
  • Superalloys
  • Thermodynamic diagrams

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)
  • Materials Science(all)

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