Abstract
Fe-Y binary alloys underwent thermogravimetric analysis while exposed to low oxidant partial pressures using a mixture of 5 pct H2-95 pct Ar gas at two flow rates. The alloys experienced in situ internal oxidation of Y-rich intermetallic phases. Kinetics and microstructures were both affected by flowrate. Lower flow rates resulted in coarser oxides and decreased oxidation rates. Results show the possible impacts of rate-controlling processes in the gas phase on internal oxidation with dilute oxidants.
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Manuscript submitted January 15, 2016.
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Kachur, S.J., Webler, B.A. Influence of Oxygen Supply on Oxide Coarsening During the Internal Oxidation of Two-Phase Fe-Y Alloys. Metallurgical and Materials Transactions E 3, 134–138 (2016). https://doi.org/10.1007/s40553-016-0077-x
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DOI: https://doi.org/10.1007/s40553-016-0077-x