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Erschienen in:
05.01.2021 | Brief Communication
Study on the Activity Interaction Coefficients of V in Fe-C-V Melts at 1873 K
Erschienen in: Metallurgical and Materials Transactions B | Ausgabe 1/2021
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Abstract
The first- and second-order interaction coefficients of V in Fe-C-V melts were accurately measured using the chemical equilibrium technique, by equilibrating CaO-MgO-Al2O3-VOx slags with Fe-C melts under controlled oxygen potential for 24 hours at 1873 K (1600 °C). The argon was employed as the protective gas and a purification device was used to control the oxygen potential in the atmosphere. The values of the interaction coefficients were determined as follows:
$$ e_{\text{V}}^{\text{C}} = - 0.468,\quad r_{\text{V}}^{\text{C}} = 0.286,\quad r_{\text{V}}^{\text{V,C}} = - 0.213 $$