FORMATION OF TIN INCLUSIONS IN STEEL MELTS – THERMODYNAMIC CALCULATIONS BASED ON THE VERIFIED DATA
https://doi.org/10.17073/0368-0797-2015-6-439-443
Abstract
Using the new, verified by the authors earlier reference data after additional check of their adequacy thermodynamic conditions of formation of inclusions of TiN in steel melts Cr18Ni12T (18/12) and Cr20Ni20T (20/20) types were calculated. Conditions of decrease in impurity specified melts by congestions of TiN were defined. For simplification of calculations the public interactive site is created. For the melt of 20/20 conditions of formation of TiN were calculated also by means of known Thermo-Calc system. The values of TiN solubilities received thus considerably exceed results of the calculations stated above which are compatible with known experimental data. These divergences are connected generally with verification of titan activity coefficients in melts on the iron base which in Thermo-Calc system are not considered yet. The authors have given the recommendations about the use of the research results on practice.
About the Authors
E. V. Lysenkova
National University of Science and Technology “MISIS”
Russian Federation
Assistant of the Chair “Metallurgy of steel and ferroalloys” dy>
Russian Federation
Assistant of the Chair “Metallurgy of steel and ferroalloys” dy>
A. Ya. Stomakhin
National University of Science and Technology “MISIS”
Russian Federation
Dr.Sci. (Eng.), Professor of the Chair “Metallurgy of steel and ferroalloys”
Russian Federation
Dr.Sci. (Eng.), Professor of the Chair “Metallurgy of steel and ferroalloys”
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Review
For citations:
Lysenkova E.V., Stomakhin A.Ya. FORMATION OF TIN INCLUSIONS IN STEEL MELTS – THERMODYNAMIC CALCULATIONS BASED ON THE VERIFIED DATA. Izvestiya. Ferrous Metallurgy. 2015;58(6):439-443. (In Russ.) https://doi.org/10.17073/0368-0797-2015-6-439-443
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