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THE EFFECT OF INDUCTION HARDENING ON FATIGUE BEHAVIOR OF RAILWAY AXLES

1 Fajkoš Rostislav
Co-authors:
1,2 Zima Radim 2 Strnadel Bohumír
Institutions:
1 BONATRANS GROUP a.s., Revoluční 1234, 735 94 Bohumín, Czech Republic, EU
2 Center of Advanced Innovation Technologies - VŠB-Technical University of Ostrava, 17. listopadu 15,  708 00 Ostrava-Poruba, Czech Republic, EU
Conference:
26th International Conference on Metallurgy and Materials, Hotel Voronez I, Brno, Czech Republic, EU, May 24th - 26th 2017
Proceedings:
Proceedings 26th International Conference on Metallurgy and Materials
Pages:
578-582
ISBN:
978-80-87294-79-6
ISSN:
2694-9296
Published:
9th January 2018
Proceedings of the conference were published in Web of Science and Scopus.
Metrics:
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Abstract

A new surface induction hardening technology was for the first time in Europe developed in BONARTANS GROUP Company for the purpose of increasing the safety and resistance of railway axles to fatigue damage. The operation of railway axles should fulfil two main demands: higher safety and low operation costs. A significant part of operation costs is given by frequency of regular inspection intervals which should reveal potential fatigue cracks in railway axle. Fatigue tests and tests of crack initiation and crack growth tests performed on induction hardened railway axles produced from steel quality EA4T and EA1N are compared with the results obtained from the standard heat treatment of railway axles. The comparison clearly demonstrates the benefits of new technology of surface induction hardening.

Keywords: Railway axle, induction hardening, crack initiation, crack growth, fatigue limit

© This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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