INFLUENCE OF NON-METALLIC INCLUSIONS IN RAIL STEEL ON ITS HIGH-TEMPERATURE PLASTICITY
https://doi.org/10.17073/0368-0797-2016-2-134-137
Abstract
The article presents the research results of the infl uence of non -metallic inclusions on high-temperature plasticity of E76F rail steel. The maximum plasticity of all three zones of the continuously cast ingot, the criterion of which is the degree of shear strain, was established. The results of high-temperature twisting of samples which were heated from 950° to 1250° and soaked for 10 minutes in all three zones of the continuous casting ingot made from rail steel are presented. The presence of oxides and silicates in the rim zone, oxi des and oxisilicates in the zone of radial-columnar crystals, as well as sulfi des, oxides, silicates and alumosilicates in the central zone of the continuous casting ingot were found. It was established that the greatest amount of inclusions is concentrated in the central zone of the continuously cast ingot which leads to reducing of plasticity criterion.
About the Authors
A. S. Simachev
Siberian State Industrial University, Novokuznetsk, Russia
Russian Federation
Russian Federation
Leading Engineer of the Chair “Metal Forming and Metal Science. OJSC “EVRAZ ZSMK”
I. N. Oskolkova
Siberian State Industrial University, Novokuznetsk, Russia
Russian Federation
Russian Federation
Cand. Sci. (Eng.), Assist. Professor of the Chair “Metal Forming and Metal Science. OJSC “EVRAZ ZSMK”
M. V. Temlyantsev
Siberian State Industrial University, Novokuznetsk, Russia
Russian Federation
Russian Federation
Dr. Sci. (Eng.), Professor of the Chair “Thermal Power and Ecology”, Vice-Rector for Research and Innovations
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Review
For citations:
Simachev A.S., Oskolkova I.N., Temlyantsev M.V. INFLUENCE OF NON-METALLIC INCLUSIONS IN RAIL STEEL ON ITS HIGH-TEMPERATURE PLASTICITY. Izvestiya. Ferrous Metallurgy. 2016;59(2):134-137. (In Russ.) https://doi.org/10.17073/0368-0797-2016-2-134-137
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