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Tribological behaviour of microalloyed and conventional C–Mn rail steels in a pure sliding condition

Autor(es) y otros:
Viesca Rodríguez, José LuisAutoridad Uniovi; González-Cachón Fernández, Sergio; García Martínez, AlbertoAutoridad Uniovi; González Rodríguez, RubénAutoridad Uniovi; Hernández Battez, Antolín EstebanAutoridad Uniovi
Palabra(s) clave:

Wear

Pin on disc

Microalloyed steel

Rail steels

Fine pearlitic microstructure

Fecha de publicación:
2018
Editorial:

SAGE Publications Ltd

Versión del editor:
http://dx.doi.org/10.1177/0954409718765063
Citación:
Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit, 232(9), p. 2201-2214 (2018); doi:10.1177/0954409718765063
Descripción física:
p. 2201-2214
Resumen:

This paper compares the tribological behaviour of microalloyed rail steel with conventional C–Mn rail steel under different test conditions (load, temperature and humidity). Pin-on-disc tribological tests were performed inside a climate chamber under different loads (20, 30 and 40 N), relative humidity (15, 55 and 70%) and temperatures (20 and 40 ℃). After the friction and wear tests, the worn surfaces were analysed using both confocal and scanning electron microscopies. The results obtained show that the use of microalloyed steel in railway applications under severe conditions (high loads and humidity) could lead to increased service life of the rails and could extend the time between maintenance operations.

This paper compares the tribological behaviour of microalloyed rail steel with conventional C–Mn rail steel under different test conditions (load, temperature and humidity). Pin-on-disc tribological tests were performed inside a climate chamber under different loads (20, 30 and 40 N), relative humidity (15, 55 and 70%) and temperatures (20 and 40 ℃). After the friction and wear tests, the worn surfaces were analysed using both confocal and scanning electron microscopies. The results obtained show that the use of microalloyed steel in railway applications under severe conditions (high loads and humidity) could lead to increased service life of the rails and could extend the time between maintenance operations.

URI:
http://hdl.handle.net/10651/47372
ISSN:
0954-4097; 2041-3017
DOI:
10.1177/0954409718765063
Patrocinado por:

The Foundation for the Promotion in Asturias of Applied Scientific Research and Technology (FICYT) supported this work within the framework of the research project ‘Lubrication and Surface Technology - LUSUTEC’ (GRUPIN14-023).

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