THE INFLUENCE OF DEFECTS ON THE DUCTILITY OF LIQUID STEEL 32G1 AND 32G2
https://doi.org/10.17073/0368-0797-2015-6-402-406
Abstract
The viscosimetric data on liquid steel 32G1 and 32G2 taken from working rollers of a reversible rolling mill with different ultrasonic behavior illustrate the infl uence of defects recorded in ultrasound monitoring of the temperature and time dependence of the liquid steel’s kinematic viscosity. The samples were taken from the pipe assortment of Naftogaz. The authors made the conclusions about the nature of the infl uence of defects detected by the magnetic and ultrasonic methods, the nature of the temperature and time dependence of the kinematic viscosity of the liquid steel 32G1 and 32G2. The ultrasonic control was made by the defectoscope MAC NDT «Echomac» for the detection of defects at the control of the production line. The temperature and time dependences of the kinematic viscosity of the liquid steel were measured. The viscosity of the liquid steel was determined by the means of damping torsional oscillations of a crucible with the melt at heating and subsequent cooling in the range of 1460 – 1810 °C.
About the Authors
M. A. Borovykh
Ural Federal University named after the first President of Russia B.N. Yeltsin, Ekaterinburg
Russian Federation
Postgraduate of the Chair of physics �зики
Russian Federation
Postgraduate of the Chair of physics �зики
V. V. V’yukhin
Ural Federal University named after the first President of Russia B.N. Yeltsin, Ekaterinburg
Russian Federation
Senior Researcher of the Research Center of physics of metallic liquids of the Institute of Materials and Metallurgy
Russian Federation
Senior Researcher 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 first President of Russia B.N. Yeltsin, Ekaterinburg
Russian Federation
Dr. Sci. (Phys.–Math.), Professor of the Chair of physics
Russian Federation
Dr. Sci. (Phys.–Math.), Professor of the Chair of physics
V. S. Tsepelev
Ural Federal University named after the first President of Russia B.N. Yeltsin, Ekaterinburg
Dr. Sci. (Eng.), Professor, Director of the Research Center of physics of metallic liquids of the Institute of Materials and Metallurgy
Dr. Sci. (Eng.), Professor, Director of the Research Center of physics of metallic liquids of the Institute of Materials and Metallurgy
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Review
For citations:
Borovykh M.A., V’yukhin V.V., Chikova O.A., Tsepelev V.S. THE INFLUENCE OF DEFECTS ON THE DUCTILITY OF LIQUID STEEL 32G1 AND 32G2. Izvestiya. Ferrous Metallurgy. 2015;58(6):402-406. (In Russ.) https://doi.org/10.17073/0368-0797-2015-6-402-406
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