Study of surface evolution in the wheel-rail interface

Battaglia, Ben T., Athukorala, Asitha, & De Pellegrin, Dennis (2016) Study of surface evolution in the wheel-rail interface. In Pombo, J. (Ed.) The Third International Conference on Railway Technology: Research, Development and Maintenance, 5-8 April, 2016, Cagliari, Sardinia, Italy.

Abstract

This paper aims to trace surface evolution in the wheel-rail interface using data obtained from a twin-disc testing machine and the surface replication technique. Changes in the surface profile of the rail testing disc are explicitly analysed according to the wear mechanism, which helps elaborate a better understanding of the attrition of asperities during the wearing-in process of surface modification. The surface profile amplitude was seen to decrease during the initial running-in phase of the experiment cycle, and after reaching a saturation value, the profile amplitude then increased. Ultimately the results show that grinding will roughen the rail surface and the wheel-rail contact conditions will then remove this surface damage to some saturation value of the profile height. The variation in the rail surface profile beyond this point is then only dependant on the contact conditions which exist between the wheel and rail during normal operation.

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5 since deposited on 28 Sep 2015
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ID Code: 87821
Item Type: Conference Paper
Refereed: Yes
Additional Information: Published in Civil-Comp Proceedings, Volume 110
Additional URLs:
Keywords: surface evolution ,, roughness, twin-disc, rail, saturation, replication
Subjects: Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > MATERIALS ENGINEERING (091200)
Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > MECHANICAL ENGINEERING (091300) > Tribology (091309)
Australian and New Zealand Standard Research Classification > COMMERCE MANAGEMENT TOURISM AND SERVICES (150000) > TRANSPORTATION AND FREIGHT SERVICES (150700) > Rail Transportation and Freight Services (150702)
Divisions: Current > Schools > School of Chemistry, Physics & Mechanical Engineering
Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering
Current > Institutes > Institute for Future Environments
Copyright Owner: Copyright 2016 Civil-Comp Ltd.
Deposited On: 28 Sep 2015 00:05
Last Modified: 05 Jan 2017 18:34

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