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THE BAINITIC STEELS FOR RAILS APPLICATIONS

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Author(s): Ivo Hlavatý | Marián Sigmund | Lucie Krejčí | Petr Mohyla

Journal: Materials Engineering
ISSN 1335-0803

Volume: 16;
Issue: 4;
Start page: 44;
Date: 2009;
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Keywords: Bainitic rail steel | Fatigue resistance | Hardness curve | Deformation hardening | Interlayer

ABSTRACT
Actual trends of worldwide railway transport development are characterized by increasing speed and growth of railway’s axels load. Increasing load together with transverse, longitudinal wheel displacement and braking on the rails results into heavy surface tension. One of many applications for bainitic steel is in railway transport for highly strength and wear resistant rails. Rail steel must be designed to be able to resist plastic deformation, wear, rolling contact fatigue, bending stress and thermal stress during rail welding process and rails resurfacing.
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