Abstract
The isotope exchange technique was employed to study the interfacial reaction kinetics of nitrogen with liquid iron-chromium and iron-chromium-sulfur solutions. Chromium was found to increase the rate of the nitrogen exchange reaction. The increase in the rate occurs, at least in part, through promotion of N2 dissociation on the chromium surface sites. Although mass transport effects in the liquid are eliminated through the use of the isotope exchange technique, it was found that a correction for gas phase mass transfer was required for the determination of the interfacial reaction rate constant due to the faster exchange rates encountered in liquid iron solutions containing chromium.
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Formerly with the Department of Metallurgical Engineering and Materials Science, Carnegie-Mellon University, Pittsburgh, PA
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Glaws, P.C., Fruehan, R.J. The kinetics of the nitrogen reaction with liquid iron-chromium alloys. Metall Trans B 17, 317–322 (1986). https://doi.org/10.1007/BF02655078
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DOI: https://doi.org/10.1007/BF02655078