PHASE DIAGRAMS OF OXIDE SYSTEM FeO–MnO–MgO–SiO2. REPORT 2. TRIPLE STATE DIAGRAMS FeO–MnO–SiO2, FeO–MgO–SiO2, MgO–MnO–SiO2
DOI:
https://doi.org/10.32339/0135-5910-2024-5-5-12Keywords:
phase diagram, modeling, phase equilibria, manganese silicates, magnesium silicatesAbstract
The knowledge of the thermodynamics and phase equilibria of silicate melts FeO–MnO–MgO–SiO2 and solid solutions of silicates of the MnO–MgO–SiO2 system allows us to predict the appearance of non-metallic inclusions in steel. The FeO–MnO–MgO–SiO2 system includes six double and four triple state diagrams of oxide systems. Previously, the state diagrams of binary FeO–MnO, FeO–MgO, FeO–SiO2, MnO–MgO and ternary FeO–MnO–MgO oxide systems were studied. In this work, state diagrams of the FeO–MnO–SiO2, FeO–MgO–SiO2 and MgO–MnO–SiO2 systems were constructed. The calculations used the theory of subregular ionic solutions, which takes into account the dependence of the coordination number on the composition of the melt, quite accurately describes diagrams with two immiscible liquids and is consistent with the experimental data presented in the literature. In the work, the energy parameters of this theory were selected to calculate the activities of the components of the oxide melt of each of the systems under study, as well as the parameter of the theory of regular ionic solutions to calculate the activities of the components of the magnesium-manganese orthosilicate solution |Mg2SiO4, Mn2SiO4|. The data obtained on the state diagrams of the systems included in the FeO–MgO–MnO–SiO2 system will make it possible to establish non-metallic inclusions in equilibrium with the liquid metal in the Fe–Mg–Mn–Si–O system.
References
Самойлова О. В., Макровец Л. А., Бакин И. В. Термодинамическое моделирование фазовых равновесий в оксидной системе FeO–SrO–SiO2 // Вестник Южно-Уральского государственного университета. Серия «Металлургия». 2019. Т. 19. № 4. С. 10–18. DOI: 10.14529/met190402.
Михайлов Г. Г., Макровец Л. А., Самойлова О. В. Термодинамическое моделирование диаграмм состо-яния двойных и тройных оксидных систем, принадлежащих к системе FeO–MgO–MnO–Al2O3 // Новые огнеупоры. 2020. № 6. С. 47–50. DOI: 10.17073/1683-4518-2020-6-47-50.
Макровец Л. А. Диаграммы состояний оксидной системы FeO–MnO–MgO–SiO2. Сообщение 1. Двойные оксидные системы MnO–SiO2 и MgO–SiO2 // Черная металлургия. Бюллетень научно-технической и эко-номической информации. 2023. Т. 79. № 7. С. 575–583.
Михайлов Г. Г., Леонович Б. И., Кузнецов Ю. С. Термодинамика металлургических процессов и систем. — М.: Изд. дом МИСиС, 2009. — 520 с.
Fujim H., Maruhashi S. Equilibrium between FeO–MnO–SiO2 Slags and Molten Iron // Tetsu-to-Hagane. 1955. V. 56. № 7. P. 830–851. DOI: 10.2355/tetsutohagane1955.56.7_830.
Mukai K., Sakai H., Sano K. On Non-metallic Inclusions in Liquid Iron Containing Si and Mn or Si, Mn, and Al // Transactionsof the Iron and Steel institute of Japan. 1969. V. 9. P. 203–215.
Kishimoto M., Fujii S., Mori K., Kawai Y. Interdiffusivity of CaO–FeO in the Liquid CaO–FeO–SiO2 System // Transactions of the Japan Institute of Metals. 1984. V. 25. № 3. P. 197–204. DOI: 10.2320/MATERTRANS1960.25.197.
Ban-ya S., Hino M., Yuge N. Activity of the Constituents in FetO–SiO2–MnO Slags in Equilibrium with Solid Iron // Tetsu-to-Hagane.1985. V. 71. № 7. P. 853–860. DOI: 10.2355/TETSUTOHAGANE1955.71.7_853.
Takagawa T., Ueda S., Ike H. etc. Production of Mn–Fe Alloy from Slag Generated in Mn-removal Treatment of Molten Cast Iron // ISIJ International. 2009. V. 49. № 11. P. 1673–1677. DOI: 10.2355/isijinternational.49.1673.
Murad A.-B. A Study of the Factors Involved in the Deoxidation of Molten Iron and Some of Its Alloys // PhD thesis, University of Glasgow. 1951. — 204 p.
Fischer W. A., Bardenheuer P. W. Die Gleichgewichte zwischen mangan-, silizium- und sauerstoffhaltigen Ei-senschmelzen und ihren Schlacken im Mangan(II)-oxydtiegel bei 1530 bis 1700 °C // Archiv für das Eisenhüt-tenwesen. 1968. V. 39. № 8. P. 559–570.
Romero-Serrano A., Pelton A. D. Thermodynamic analysis of binary and ternary silicate systems by a structur-al model // ISIJ International. 1999. V. 39. № 5. P. 399–408. DOI: 10.2355/isijinternational.39.399.
Kang Y.-B., Jung I.-H. Critical Evaluations and Thermodynamic Optimizations of the MnO–Mn2O3–SiO2 and FeO–Fe2O3–MnO–Mn2O3–SiO2 Systems // Metallurgical and Materials Transactions B. 2017. V. 48. № 3. P. 1721–1735. DOI: 10.1007/s11663-017-0953-5.
Bowen N. L., Schairer J. F. The system MgO–FeO–SiO2 // American Journal of Science. 1935. s5–29. № 170. P. 151–217. DOI: 10.2475/ajs.s5-29.170.151.
Sakawa M., Whiteway S. G., Masson C. R. Activity of FeO in the Ternary System SiO2–MgO–FeO and Consti-tution of SiO2 // Transactions of the Iron and Steel Institute of Japan. 1978. V. 18. № 3. P. 173–176. DOI: 10.2355/isijinternational1966.18.173.
Presnall D. C., Gasparik T. Melting of enstatite (MgSiO3) from 10 to 16.5 GPa and the forsterite (Mg2SiO4)-majorite (MgSiO3) eutectic at 16.5 GPa: Implications for the origin of the mantle // Journal of Geophysical Re-search. 1990. V. 95. № B10. 15771. DOI: 10.1029/jb095ib10p15771.
Wu P., Eriksson G., Pelton A. D., Blander M. Prediction of silicate of the thermodynamic properties and phase diagrams systems evaluation of the FeO–MgO–SiO2 system // ISIJ International. 1993. V. 33. № 1. P. 26–35. DOI: 10.2355/isijinternational.33.26.
Fabrichnaya O. B. Thermodynamic data for phases in the FeO–MgO–SiO2 system and phase relations in the mantle transition zone // Physics and Chemistry Minerals. 1995. V. 22. P. 323–332. DOI: 10.1007/BF00202773.
Björkvall J., Sichen D., Seetharaman S. Thermodynamic Description of “FeO”–MgO–SiO2 and “FeO”–MnO–SiO2 Melts – a Model Approach // High Temperature Materials and Processes. 2000. V. 19. № 1. P. 49–59. DOI: 10.1515/htmp.2000.19.1.49.
Akimoto S. I. The system MgO–FeO–SiO2 at high pressures and temperatures – phase equilibria and elastic properties // Tectonophysics. 1972. V. 13. № 1–4. P. 161–187. DOI: 10.1016/0040-1951(72)90019-4.
Decterov S. A., Jung I.-H., Pelton A. D. Thermodynamic Modeling of the FeO–Fe2O3–MgO–SiO2 System // Journal of the American Ceramic Society. 2002. V. 85. № 12. P. 2903–2910. DOI: 10.1111/j.1151-2916.2002.tb00554.x.
Chen S., Jak E., Hayes P. C. Phase Equilibria in the Cristobalite, Tridymite and Pyroxene Primary Phase Fields in the MgO–“FeO”–SiO2 System in Equilibrium with Metallic Iron // ISIJ International. 2005. V. 45. № 6. P. 791–797. DOI: 10.2355/isijinternational.45.791.
Chen S., Jak E., Hayes P. C. Phase Equilibria in the Olivine Primary Phase Field in the MgO–“FeO”–SiO2 Sys-tem in Equilibrium with Metallic Iron // ISIJ International. 2005. V. 45. № 8. P. 1095–1100. DOI: 10.2355/isijinternational.45.1095.
Glasser F. P., Osborn E. F. The Ternary System MgO–MnO–SiO2 // Journal of the American Ceramic Society. 1960. V. 43. № 3. P. 132–140. DOI: 10.1111/j.1151-2916.1960.tb14327.x.
Panda S. K., Cao Z., Jung I-H., Fahrenholt W. G. Critical Evaluation and Thermodynamic Modeling of the MgO–MnO–Mn2O3–SiO2 System // Journal of the American Ceramic Society. 2015. V. 98. № 9. P. 2921–2930. DOI: 10.1111/jace.13688.
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