Corrosion behaviour of 16%Cr-4%Al and 16%Cr ODS ferritic steels under different metallurgical conditions in a supercritical water environment

J. Isselin, R. Kasada, A. Kimura

Research output: Contribution to journalArticlepeer-review

56 Citations (Scopus)

Abstract

The corrosion behaviour of 16%Cr and 16%Cr-4%Al ODS ferritic steels in different heat treatment conditions has been investigated in a supercritical water environment. The exposed coupons were analyzed using scanning electron microscopy (SEM), electron probe micro analysis (EPMA), Auger and X-ray diffraction analysis (XRD). It was found that the formation of oxides depends on the chemical composition and not on the metallurgical condition. The Al-free alloys formed a monolayer oxide film composed of (Cr,Fe)2O3. The Al-containing alloys formed an oxide film composed of an outer layer of hematite and magnetite and an inner layer of Al2O3. The oxidation mechanisms are discussed.

Original languageEnglish
Pages (from-to)3266-3270
Number of pages5
JournalCorrosion Science
Volume52
Issue number10
DOIs
Publication statusPublished - 2010 Oct
Externally publishedYes

Keywords

  • A. ODS ferritic steel
  • C. Oxidation
  • C. Supercritical water

ASJC Scopus subject areas

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

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