SPHERICAL INDENTATION APPROACH TO DETERMINE MECHANICAL PROPERTIES OF HADFIELD’S STEEL

1 KAYA Utku
Co-authors:
2 SCHMIDOVA Eva
Institutions:
1 Jan Perner Transport Faculty, University of Pardubice, Pardubice, Czech Republic, EU, utkukaya63@gmail.com
2 Jan Perner Transport Faculty, University of Pardubice, Pardubice, Czech Republic, EU, Eva.Schmidova@upce.cz
Conference:
25th Anniversary International Conference on Metallurgy and Materials, Hotel Voronez I, Brno, Czech Republic, EU, May 25th - 27th 2016
Proceedings:
Proceedings 25th Anniversary International Conference on Metallurgy and Materials
Pages:
730-734
ISBN:
978-80-87294-67-3
ISSN:
2694-9296
Published:
14th December 2016
Proceedings of the conference were published in Web of Science and Scopus.
Metrics:
88 views / 49 downloads
Abstract

Hadfield’s steel has been widely used for railway switch and frogs because of its desirable mechanical behaviour under high load applications. Austenitic Hadfield´s steel containing approx. 1.2 wt. % of C and 12 wt. % of Mn is known for a high resistance to impact wear caused by rapid cold work hardening.In this study, several methods have been performed to examine the mechanical properties of Hadfield’s steel. Dislocations and white etching layers were observed during metallographic analysis. Besides that, indentation method was applied for evaluation of the elastic-plastic response of the surface. In addition to our previous studies, the spherical indentation method was introduced to obtain more accurate results for rough (uneven) surface. Force-Indentation depth graphs were examined by the specific method, moreover, real rail sample, with or without explosive hardening samples were compared by means of the new method.

Keywords: Hadfield steel, Metallography, Spherical Indentation test

© 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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