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Solubility limit of nitrogen in Fe–Cr–C–N alloy melt under reduced N2 partial pressure
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A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
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en
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5
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Vacuum, Volume 182
Abstract
The N solubility in Fe–Cr–C–N melt was measured by the addition of Cr and C in liquid iron using the metal/gas equilibration technique at 1600 °C under a reduced N 2 partial pressure. Cr increased the N solubility by the attraction force between Cr and N, while C showed the opposite effect on N in liquid iron. The present experimental results were thermodynamically analyzed by Wagner's interaction parameter formalism. The existence of the simultaneous effect of Cr and C on the N solubility was confirmed, which was determined as the second-order cross-product parameter of Cr and C on N in liquid iron. This parameter set in the multicomponent Fe–Cr–C–N system can be used to predict the solubility limit of N in the degassing process of stainless steelmaking.
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Paek, M-K, Lindberg, D & Pak, J-J 2020, 'Solubility limit of nitrogen in Fe–Cr–C–N alloy melt under reduced N2 partial pressure', Vacuum, vol. 182, 109726. https://doi.org/10.1016/j.vacuum.2020.109726