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Effect of Postdeformation Pause on Structure and Properties of Accelerated-Cooled Bearing Steel

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Author(s): L. A. Vakula | V. M. Krasnopolskiy | V. I. Fomin | I. V. Beketov

Journal: Metallurgical and Mining Industry
ISSN 2076-0507

Volume: 2;
Issue: 4;
Start page: 286;
Date: 2010;
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Keywords: ACCELERATED COOLING | SELF-TEMPERING TEMPERATURE | MICROSTRUCTURE | CARBIDE NETWORK | GRAIN SIZE | HARDNESS

ABSTRACT
Effect of pause between rolling end and start of accelerated cooling on microstructure and properties of bearing steel bar rolled on mill 350 at JSC “Oskolsky Electrometallurgical Works” is investigated. It is recommended to reduce the pause as much as possible. For this purpose the accelerated cooling unit should be placed on the minimum distance from the last stand and it is necessary to start cooling from the first section and use the last mill stand as finishing one.
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