Jullian, Domingo and Prillieux, Aurélien and Zhang, Jianqiang and Young, David J.
Oxygen permeability of Fe-Ni-Cr alloys at 1100 and 1150 °C under carbon-free and carbon-containing gases.
(2016)
Materials and Corrosion / Werkstoffe und Korrosion, 68 (2). 197-204. ISSN 0947-5117
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(Document in English)
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Official URL: https://doi.org/10.1002/maco.201508803
Abstract
Wagner's model of internal oxidation allows the prediction of an alloy's critical concentration of oxide forming metal required to achieve a protective oxide scale at high temperatures. The model depends on oxygen permeability in the alloy, but this parameter has not been evaluated for the Fe-Ni system, and the influence of carbon-bearing gases is unknown. Oxygen permeability measurement by internal oxidation of Fe-Ni-Cr alloys, reacted at 1100 and 1150 8C is described. Exposures in Rhines packs and flowing CO-CO2 gas mixtures serve to assess the influence of carbon on oxygen permeability at the Fe-FeO equilibrium oxygen potential. Oxygen permeability in Fe-Ni increases with iron content in a non-ideal manner in both gas environments. Higher permeability is found in carbon bearing gases for iron-rich alloys, and the size of this effect increases with temperature.
Item Type: | Article |
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HAL Id: | hal-02003007 |
Audience (journal): | International peer-reviewed journal |
Uncontrolled Keywords: | |
Institution: | French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE) Université de Toulouse > Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE) Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE) Other partners > University of Sydney (AUSTRALIA) |
Laboratory name: | |
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Deposited On: | 01 Feb 2019 08:19 |
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