Abstract
The oxidation behavior of Fe-C alloys in the temperature range 600–850°C has been studied. CO 2 evolved during oxidation was measured using an infrared gas analyzer. The presence of C lowers the oxidation rate relative to that of pure Fe and this has been related to the rejection of carbon at the alloy-scale interface causing poor contact between scale and alloy. As a result, the scale contains a higher proportion of magnetite, which reduces its overall growth rate. Very little carbon is lost to the atmosphere. The ease with which the rejected carbon is incorporated into the alloy depends on the alloy structure.
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Malik, A.U., Whittle, D.P. Oxidation of Fe-C alloys in the temperature range 600–850°C. Oxid Met 16, 339–353 (1981). https://doi.org/10.1007/BF00611348
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DOI: https://doi.org/10.1007/BF00611348