Laser raman spectroscopic studies of the surface oxides formed on iron chromium alloys at elevated temperatures

S. C. Tjong*

*Corresponding author for this work

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

44 Citations (Scopus)

Abstract

Binary iron-base alloys containing chromium additions of 3, 9, 12 and 18 % were oxidized in air at elevated temperatures. Laser Raman spectroscopy has been used to determine the chemical compounds of the oxides of these alloys. It is found that the oxides formed on Fe-3Cr alloy at various elevated temperatures consist mainly of iron. However, for Cr additions ≥12 %, the surface oxide formed at 400°C consists of αFe2O3, Fe3O4 and spinel phases. With increasing oxidation temperature up to 850°C, the oxide scale consists of Cr2O3 and spinel phases only.

Original languageEnglish
Pages (from-to)157-165
Number of pages9
JournalMaterials Research Bulletin
Volume18
Issue number2
DOIs
Publication statusPublished - 1983

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