Development of a composite friction modifier with carbon nanotubes for applications at the wheel–rail interface

Wear of wheels and rails is a major problem in railway transportation industry. Solid lubricants constitute a cost-efficient alternative to control wear and friction at the wheel–rail interface, especially when a fine-tuned balance between traction force and energy consumption is sought. In this wor...

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Detalles Bibliográficos
Autor: Nevshupa, Roman
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2020
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/230958
Acceso en línea:http://hdl.handle.net/10261/230958
Access Level:acceso abierto
Palabra clave:Carbon nanotubes
Composite friction modifiers
Wheel–rail contact
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spelling Development of a composite friction modifier with carbon nanotubes for applications at the wheel–rail interfaceNevshupa, RomanCarbon nanotubesComposite friction modifiersWheel–rail contactWear of wheels and rails is a major problem in railway transportation industry. Solid lubricants constitute a cost-efficient alternative to control wear and friction at the wheel–rail interface, especially when a fine-tuned balance between traction force and energy consumption is sought. In this work, composite friction modifiers (CFMs) composed of a vinyl ester matrix reinforced with molybdenum disulfide and carbon nanotubes were developed. The total solid additive content was less than a half in comparison with a commercial product available on the market, which was used as a reference. A benchmarking study of the CFM was carried out by means of tribological tests in a twin-disc machine at a contact pressure of 1.1 GPa and different slip values. The results indicated that the developed CFM reduce coefficient of traction by 10% compared to unlubricated conditions that is similar to the reference. However, the total mass loss of steel components due to wear under CFM lubrication was lower than in the reference test.Sage PublicationsConsejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]2021202120202021info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/230958reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttp://dx.doi.org/10.1177/2633366X20930019Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/2309582026-05-22T06:33:51Z
dc.title.none.fl_str_mv Development of a composite friction modifier with carbon nanotubes for applications at the wheel–rail interface
title Development of a composite friction modifier with carbon nanotubes for applications at the wheel–rail interface
spellingShingle Development of a composite friction modifier with carbon nanotubes for applications at the wheel–rail interface
Nevshupa, Roman
Carbon nanotubes
Composite friction modifiers
Wheel–rail contact
title_short Development of a composite friction modifier with carbon nanotubes for applications at the wheel–rail interface
title_full Development of a composite friction modifier with carbon nanotubes for applications at the wheel–rail interface
title_fullStr Development of a composite friction modifier with carbon nanotubes for applications at the wheel–rail interface
title_full_unstemmed Development of a composite friction modifier with carbon nanotubes for applications at the wheel–rail interface
title_sort Development of a composite friction modifier with carbon nanotubes for applications at the wheel–rail interface
dc.creator.none.fl_str_mv Nevshupa, Roman
author Nevshupa, Roman
author_facet Nevshupa, Roman
author_role author
dc.contributor.none.fl_str_mv Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Carbon nanotubes
Composite friction modifiers
Wheel–rail contact
topic Carbon nanotubes
Composite friction modifiers
Wheel–rail contact
description Wear of wheels and rails is a major problem in railway transportation industry. Solid lubricants constitute a cost-efficient alternative to control wear and friction at the wheel–rail interface, especially when a fine-tuned balance between traction force and energy consumption is sought. In this work, composite friction modifiers (CFMs) composed of a vinyl ester matrix reinforced with molybdenum disulfide and carbon nanotubes were developed. The total solid additive content was less than a half in comparison with a commercial product available on the market, which was used as a reference. A benchmarking study of the CFM was carried out by means of tribological tests in a twin-disc machine at a contact pressure of 1.1 GPa and different slip values. The results indicated that the developed CFM reduce coefficient of traction by 10% compared to unlubricated conditions that is similar to the reference. However, the total mass loss of steel components due to wear under CFM lubrication was lower than in the reference test.
publishDate 2020
dc.date.none.fl_str_mv 2020
2021
2021
2021
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Publisher's version
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/230958
url http://hdl.handle.net/10261/230958
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv http://dx.doi.org/10.1177/2633366X20930019
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Sage Publications
publisher.none.fl_str_mv Sage Publications
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.811543

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