STRUCTURE AND PROPERTIES OF THE STEEL RAILWAY WHEEL DISC AFTER FORCED COOLING

STRUCTURE AND PROPERTIES OF THE STEEL RAILWAY WHEEL DISC AFTER FORCED COOLING

The technological use of accelerated cooling makes it possible to improve the carbon steel properties of the all-rolled railway wheel disc. The properties’ complex depends on the temperature of the accelerated cooling termination. This is determined by the ratio of the carbon atoms emitted from the...

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Bibliographic Details
Main Authors: Igor VAKULENKO, Nikolajj GRISCHENKO, Leonid VAKULENKO, Vasily EFREMENKO, Svetlana PROIYDAK, Oleg PERKOV
Format: Article
Language:English
Published: Silesian University of Technology 2018-03-01
Series:Scientific Journal of Silesian University of Technology. Series Transport
Subjects:
strength
carbon steel
wheel disc
accelerated cooling
microstructure
Online Access:http://sjsutst.polsl.pl/archives/2018/vol98/173_SJSUTST98_2018_Vakulenko_Grischenko_Vakulenko_Efremenko_Proiydak_Perkov.pdf
Description
Summary:The technological use of accelerated cooling makes it possible to improve the carbon steel properties of the all-rolled railway wheel disc. The properties’ complex depends on the temperature of the accelerated cooling termination. This is determined by the ratio of the carbon atoms emitted from the supersaturated solid solution to the crystal structure defects and dispersion strengthening from carbide phase particles. If the cooling stops at a temperature above 350°C, the decline rate of the strength properties increases. This is caused by the excessive softening effect of the solid solution breakdown and cementite spheroidization during the processes of dispersion hardening.
ISSN:0209-3324
2450-1549

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