Lewis, S. orcid.org/0000-0003-2597-9625, Lewis, R., Goodwin, P.S. et al. (4 more authors) (2017) Full-scale testing of laser clad railway track; case study - testing for wear, bend fatigue and insulated block joint lipping integrity. Wear, 376 (Part B). pp. 1930-1937. ISSN 0043-1648
Abstract
This paper reports on a series of tests which were carried out on full-scale sections of rail that had been treated by laser cladding aiming to create a layer (~1-2mm) of high performance material on the rail head. Experiments were designed to measure wear, lipping of insulated block joints (IBJs) and bending fatigue of clad samples. The wear rate of the clad samples was between 78- 89% lower than that of the standard R260 reference sample. Cladding of either side of an insulated block joint greatly improves its lipping resistance and allows it to withstand approximately 3 times the energy input into the contact compared to a standard un-clad IBJ. A section of rail clad with martensitic stainless steel was subject to bend fatigue testing and ran out to 5,000,000 cycles at a stress range of 350 MPa matching the performance of an unclad R260 rail. Although there is no standard for the bend testing of laser clad rail this performance exceeds the performance requirements of the NR/SP/TRK111 standard which governs the bend testing of flash but welded rail.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2017 Elsevier B.V. This is an author produced version of a paper subsequently published in Wear. Uploaded in accordance with the publisher's self-archiving policy. Article available under the terms of the CC-BY-NC-ND licence (https://creativecommons.org/licenses/by-nc-nd/4.0/) |
Keywords: | Full-Scale; Testing; Laser Cladding; Wear; Insulated Block Joint; Lipping; Bending Fatigue |
Dates: |
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Institution: | The University of Sheffield |
Academic Units: | The University of Sheffield > Faculty of Engineering (Sheffield) > Department of Mechanical Engineering (Sheffield) |
Funding Information: | Funder Grant number INNOVATE UK (TSB) 17742-125255 |
Depositing User: | Symplectic Sheffield |
Date Deposited: | 14 Feb 2017 14:48 |
Last Modified: | 15 Jun 2018 00:38 |
Published Version: | https://doi.org/10.1016/j.wear.2017.02.023 |
Status: | Published |
Publisher: | Elsevier |
Refereed: | Yes |
Identification Number: | 10.1016/j.wear.2017.02.023 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:112308 |