CORRELATION OF MECHANICAL PROPERTIES OF INGOTS OF STEEL GX40CrNiSi25-12 WITH THEIR MICROSTRUCTURE AND MELT VISCOSITY
https://doi.org/10.17073/0368-0797-2015-3-167-173
Abstract
Metallographic examination of the microstructure of ingots of
steel GX40CrNiSi25-12, which are characterized by different levels
of mechanical properties, was held. Samples were selected from the
grates of kiln carries. The microstructure of the samples, which are
characterized by a lower value of strength and ductility, contains more non-metallic inclusions and σ-phase. The authors studied the viscosity of these samples in the liquid state. The viscosity of the liquid steel is measured by means of damping torsional oscillations of a crucible with melt in heating and subsequent cooling in the range of 1500 – 1720 °C. According to the results of the experiments the correlation of mechanical properties of cast samples of steel GX40CrNiSi25-12 was concluded with features of their microstructure and the kinematic viscosity of the melt.
About the Authors
V. V. Konashkov
Ural Federal University named after the fi rst President of Russia B.N. Yeltsin 19, Mira str., Ekaterinburg, 620002, Russia
Russian Federation
Russian Federation
Cand. Sci. (Eng.), Senior Researcher of “Research Center of Physics of Metallic Liquids of Institute of Materials and Metallurgy”
V. S. Tsepelev
Ural Federal University named after the fi rst President of Russia B.N. Yeltsin 19, Mira str., Ekaterinburg, 620002, Russia
Russian Federation
Russian Federation
Dr. Sci. (Eng.), Professor, Director of the Research Center of Physics of metallic liquids of the Institute of Materials and Metallurgy
O. A. Chikova
Ural Federal University named after the fi rst President of Russia B.N. Yeltsin 19, Mira str., Ekaterinburg, 620002, Russia
Russian Federation
Russian Federation
Dr. Sci. (Phys.-Math.), Professor of “The Chair of physics”
A. V. Belonosov
Ural State Pedagogical University 26, Kosmonavtov pr., Ekaterinburg, 620017, Russia
Russian Federation
Postgraduate
Russian Federation
Postgraduate
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Review
For citations:
Konashkov V.V., Tsepelev V.S., Chikova O.A., Belonosov A.V. CORRELATION OF MECHANICAL PROPERTIES OF INGOTS OF STEEL GX40CrNiSi25-12 WITH THEIR MICROSTRUCTURE AND MELT VISCOSITY. Izvestiya. Ferrous Metallurgy. 2015;58(3):167-173. (In Russ.) https://doi.org/10.17073/0368-0797-2015-3-167-173
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