Impact of Decarburization on the Hardness of the Rails Running Surface

Impact of Decarburization on the Hardness of the Rails Running Surface


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Abstract. Possible causes of rail head defects related to decarburization of the rolling surface are presented. The surface of the rail head was tested directly from the manufacturers and the decarburization of this surface was determined by measuring the hardness and observing the microstructure of the surface layer. The tests were carried out on the basis of requirements included in PN-EN 13674-1 + A1: 2017 [1] and Technical Conditions Id-106: 2010 [2].

Rail Defects, Decarburization, Rail Grinding

Published online , 7 pages
Copyright © 2020 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA

Citation: MIKŁASZEWICZ Ireneusz, Impact of Decarburization on the Hardness of the Rails Running Surface, Materials Research Proceedings, Vol. 17, pp 146-151, 2020


The article was published as article 22 of the book Terotechnology XI

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[1] PN EN 13674-1 + A1:2017. Railway applications – Track – Rail – Part 1: Vignole railway rails 46 kg/m and above.
[2] WTWiO Id-106:2010. Conditions for making and receiving railway rails – Requirements and tests.
[3] PN-EN ISO 3887:2005. Steel. Determination of decarburization depth.
[4] H. Bałuch, Threats in the railway surface, Railway Research Institute, Warsaw 2017.
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[7] G. F. Vander Voort, Understanding and measuring decarburization, Advanced Material and Processes, February 2015.
[8] B Bogdaniuk, A. Massel, Measurements of unevenness of rail rolling surfaces on PKP lines, Railway Reports, Issue 120, CNTK Warsaw 1995.