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Surface analysis of the selective oxidation during austeniticannealing of CMnSi high strength steel
Published online by Cambridge University Press: 10 April 2009
Abstract
The selective oxidation of three CMnSi steels with differentC levels was studied by XPS. The formation of a graduallycovering SiO2 film is observed until a transition temperatureabove which the oxide film disappears, resulting in a renewedappearance of metallic iron at the surface. This change inoxidation behavior is thought to be due to the SiO2 reductionby solute C which is thermodynamically favorable at hightemperature. At the same time the precipitation of a BN filmon the metallic surface was observed which prevented anyfurther oxidation.
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- Research Article
- Information
- Metallurgical Research & Technology , Volume 106 , Issue 4: EnvironmentBlast FurnaceSteelmakingGalvanizingSteel Use , April 2009 , pp. 175 - 181
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- © La Revue de Métallurgie, 2009
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