STUDY OF THE KINETICS OF CARBON OXIDATION BY ARGON-OXYGEN PLASMA IN CHROMIUM-CONTAINING MELTS
https://doi.org/10.17073/0368-0797-2016-9-656-662
Abstract
The article describes the investigation of treatment processes of such alloys as Fe – Cr and Fe – Cr – Ni by oxygen-containing plasma. The laboratory unit, which is a plasma furnace with a tungsten cathode and a water-cooled copper anode, can simulate processes that occur in the contact area of plasma arc and melt surface. It was also developed a mathematical model describing the processes occurring in the interaction between plasma torch and surface of the molten metal. According to the results of the experiments the authors have determined the kinetic parameters of decarburization process of high-chromium melts by argon-oxygen plasma. The results allow to conclude that treatment of high-chromium melts by plasma which contents less than 15–17 % of oxygen provides a high degree of decarburization with low chromium haze. The comparison of model calculations and experimental data has shown good reproducibility.
Supporting agencies: Federal Target Program (agreement is RFMEFI57814X0023)
About the Authors
B. A. Rumyantsev
National University of Science and Technology “MISIS”, Moscow
Russian Federation
Postgraduate of the Chair “Metallurgy of Steel and Ferroalloys”
Russian Federation
Postgraduate of the Chair “Metallurgy of Steel and Ferroalloys”
O. A. Komolova
National University of Science and Technology “MISIS”, Moscow
Russian Federation
Cand. Sci. (Eng.), Assist. Professor of the Chair “Metallurgy of Steel and Ferroalloys”
Russian Federation
Cand. Sci. (Eng.), Assist. Professor of the Chair “Metallurgy of Steel and Ferroalloys”
K. V. Grigorovich
National University of Science and Technology “MISIS”;
Baikov Institute of Metallurgy and Materials Science, RAS, Moscow
Russian Federation
Coresponding Member of Russian Academy of Sciences, Dr. Sci. (Eng.), Professor, Head of the of the Chair “Metallurgy of Steel and Ferroalloys”, Head of the Laboratory
Russian Federation
Coresponding Member of Russian Academy of Sciences, Dr. Sci. (Eng.), Professor, Head of the of the Chair “Metallurgy of Steel and Ferroalloys”, Head of the Laboratory
A. K. Garber
National University of Science and Technology “MISIS”, Moscow
Russian Federation
Cand. Sci. (Eng.), Assist. Professor of the Chair “Metallurgy of Steel and Ferroalloys”
Russian Federation
Cand. Sci. (Eng.), Assist. Professor of the Chair “Metallurgy of Steel and Ferroalloys”
Ya. I. Tabakov
Baikov Institute of Metallurgy and Materials Science, RAS, Moscow
Russian Federation
Research Engineer
Russian Federation
Research Engineer
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Review
For citations:
Rumyantsev B.A., Komolova O.A., Grigorovich K.V., Garber A.K., Tabakov Ya.I. STUDY OF THE KINETICS OF CARBON OXIDATION BY ARGON-OXYGEN PLASMA IN CHROMIUM-CONTAINING MELTS. Izvestiya. Ferrous Metallurgy. 2016;59(9):656-662. (In Russ.) https://doi.org/10.17073/0368-0797-2016-9-656-662
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