| Autor: |
Stomakhin, A., Lysenkova, E. |
| Zdroj: |
Russian Metallurgy (Metally); Nov2013, Vol. 2013 Issue 11, p834-839, 6p |
| Abstrakt: |
The initial parameters for calculating the activity coefficients of titanium in complex iron-based melts are determined. For this purpose, multiple regression analysis of 311 experimental results obtained by independent researchers is used. As a result, the initial parameters for calculating the activity coefficients of titanium (γ = 0.059, its temperature dependence logγ = −14900/ T + 6.73) and the temperature dependences of interaction parameters e and r are refined. The found value of γ agrees with the results of a number of earlier investigations and is significantly higher than the values recommended in the most widely used handbooks. The application of the found parameters for calculating the nitrogen concentrations in equilibrium with TiN in the melts decreases the mean deviation of the calculated data from the experimental results to a level of at most ±13%, which is much better than in the case of using the data from the most widely used handbooks. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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