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Changes in structure and phase composition in the surface of tram rail
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SYSNO ASEP 0468180 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title Changes in structure and phase composition in the surface of tram rail Author(s) Švábenská, Eva (UFM-A) ORCID
Roupcová, Pavla (UFM-A) RID, ORCID
Schneeweiss, Oldřich (UFM-A) RID, ORCIDNumber of authors 3 Source Title METAL 2016: 25th International Conference on Metallurgy and Materials. - Ostrava : Tanger Ltd., 2016 - ISBN 978-80-87294-67-3 Pages s. 867-872 Number of pages 6 s. Publication form Medium - C Action METAL 2016 - Anniversary International Conference on Metallurgy and Materials /25./ Event date 25.05.2016 - 27.05.2016 VEvent location Brno Country CZ - Czech Republic Event type WRD Language eng - English Country CZ - Czech Republic Keywords tram rail ; microstructure analysis ; surface Subject RIV JG - Metallurgy Institutional support UFM-A - RVO:68081723 UT WOS 000391251200140 EID SCOPUS 85010743423 Annotation We have investigated structure and phase composition of surface layer of tram rails after long time running and the results were compared with those obtained on the original part of material. Changes due to effects of severe plastic deformation together with thermal shocks by friction process were expected. The information about structure and phase composition was obtained by optical and scanning electron microscopy, X-Ray Powder Diffraction, Mössbauer Spectroscopy and Glow Discharge Emission Spectroscopy (GDOES) and this was completed by microhardness measurements. The results show that the surface layer in comparison with the original material exhibits important changes in grain structure, an increase in microhardness and high content of iron oxide and hydrooxides. According to the depth profile of the chemical composition measured by GDOES there is an increase in carbon content in the surface layer which can be effect of up-hill diffusion. Workplace Institute of Physics of Materials Contact Yvonna Šrámková, sramkova@ipm.cz, Tel.: 532 290 485 Year of Publishing 2017
Number of the records: 1