Tribological comparison of different C-based coatings in lubricated and unlubricated conditions

The use of carbon-based coatings (hydrogenated and non-hydrogenated DLC, doped and alloyed-DLC) is of wide interest due to its applications in mechanical components submitted to friction and wear including sliding parts in automotive engines. A tribological comparative analysis using a reciprocating...

Descripción completa

Detalles Bibliográficos
Autores: Ciarsolo, I, Fernández, X, Ruíz de Gopegui, U., Zubizarreta, C., Abad, Manuel D., Mariscal, A., Caretti, Ignacio, Jiménez, I, Sánchez López, Juan Carlos
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2014
País:España
Institución:Universidad de Sevilla (US)
Repositorio:idUS. Depósito de Investigación de la Universidad de Sevilla
OAI Identifier:oai:idus.us.es:11441/73220
Acceso en línea:https://hdl.handle.net/11441/73220
https://doi.org/10.1016/j.surfcoat.2014.07.068
Access Level:acceso abierto
Palabra clave:Amorphous carbon
Tribology
Lubrication
SRV
wear
Friction
id ES_573c698a9170cb8d4e78db09e7268cb1
oai_identifier_str oai:idus.us.es:11441/73220
network_acronym_str ES
network_name_str España
repository_id_str
spelling Tribological comparison of different C-based coatings in lubricated and unlubricated conditionsCiarsolo, IFernández, XRuíz de Gopegui, U.Zubizarreta, C.Abad, Manuel D.Mariscal, A.Caretti, IgnacioJiménez, ISánchez López, Juan CarlosAmorphous carbonTribologyLubricationSRVwearFrictionThe use of carbon-based coatings (hydrogenated and non-hydrogenated DLC, doped and alloyed-DLC) is of wide interest due to its applications in mechanical components submitted to friction and wear including sliding parts in automotive engines. A tribological comparative analysis using a reciprocating (SRV) tester in lubricated and unlubricated conditions with a 4-stroke motor oil has been carried out on six currently relevant state-of-the-art coatings (namely WC/a-C, TiBC/a-C and TiC/a-C:H nanocomposites, Ti-doped DLC, BCN film and a crystalline monolithic TiC film as reference). The quantification of the fraction of the sp2-bonded matrix has been done by fitting of C 1s XPS peak and the mechanical properties evaluated by nanoindentation. The comparative analysis has allowed us to identify the capabilities of each system depending on the testing conditions and the possible synergies as a function of the chemical composition and film nature. Under lubricated harsh conditions (max. contact pressure 1.7 GPa) only coatings displaying hardness superior to 20 GPa could stand the sliding motion without failure. At lower contact pressures, a significant fraction of sp2 carbon (≥ 75%) is advantageous for reducing wear in boundary lubrication. WC/a-C, BCN and Ti-DLC films showed the best tribological response in dry sliding conditions. This fundamental information would be of relevance for assisting engineers in selecting best partnership for lubrication systemsEspaña MEC MAT2007-66881-C02-01 MAT2011-29074-C02-01CONSOLIDER FUNCOAT CSD2008-00023ElsevierMinisterio de Educación y Ciencia (MEC). España2014info:eu-repo/semantics/articleinfo:eu-repo/semantics/acceptedVersionapplication/pdfapplication/pdfhttps://hdl.handle.net/11441/73220https://doi.org/10.1016/j.surfcoat.2014.07.068reponame:idUS. Depósito de Investigación de la Universidad de Sevillainstname:Universidad de Sevilla (US)InglésSurface and Coatings Technology, 257, 278-285.CSD2008-00023AT2007-66881-C02-01MAT2011-29074-C02-01http://dx.doi.org/10.1016/j.surfcoat.2014.07.068info:eu-repo/semantics/openAccessoai:idus.us.es:11441/732202026-06-17T12:51:07Z
dc.title.none.fl_str_mv Tribological comparison of different C-based coatings in lubricated and unlubricated conditions
title Tribological comparison of different C-based coatings in lubricated and unlubricated conditions
spellingShingle Tribological comparison of different C-based coatings in lubricated and unlubricated conditions
Ciarsolo, I
Amorphous carbon
Tribology
Lubrication
SRV
wear
Friction
title_short Tribological comparison of different C-based coatings in lubricated and unlubricated conditions
title_full Tribological comparison of different C-based coatings in lubricated and unlubricated conditions
title_fullStr Tribological comparison of different C-based coatings in lubricated and unlubricated conditions
title_full_unstemmed Tribological comparison of different C-based coatings in lubricated and unlubricated conditions
title_sort Tribological comparison of different C-based coatings in lubricated and unlubricated conditions
dc.creator.none.fl_str_mv Ciarsolo, I
Fernández, X
Ruíz de Gopegui, U.
Zubizarreta, C.
Abad, Manuel D.
Mariscal, A.
Caretti, Ignacio
Jiménez, I
Sánchez López, Juan Carlos
author Ciarsolo, I
author_facet Ciarsolo, I
Fernández, X
Ruíz de Gopegui, U.
Zubizarreta, C.
Abad, Manuel D.
Mariscal, A.
Caretti, Ignacio
Jiménez, I
Sánchez López, Juan Carlos
author_role author
author2 Fernández, X
Ruíz de Gopegui, U.
Zubizarreta, C.
Abad, Manuel D.
Mariscal, A.
Caretti, Ignacio
Jiménez, I
Sánchez López, Juan Carlos
author2_role author
author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Ministerio de Educación y Ciencia (MEC). España
dc.subject.none.fl_str_mv Amorphous carbon
Tribology
Lubrication
SRV
wear
Friction
topic Amorphous carbon
Tribology
Lubrication
SRV
wear
Friction
description The use of carbon-based coatings (hydrogenated and non-hydrogenated DLC, doped and alloyed-DLC) is of wide interest due to its applications in mechanical components submitted to friction and wear including sliding parts in automotive engines. A tribological comparative analysis using a reciprocating (SRV) tester in lubricated and unlubricated conditions with a 4-stroke motor oil has been carried out on six currently relevant state-of-the-art coatings (namely WC/a-C, TiBC/a-C and TiC/a-C:H nanocomposites, Ti-doped DLC, BCN film and a crystalline monolithic TiC film as reference). The quantification of the fraction of the sp2-bonded matrix has been done by fitting of C 1s XPS peak and the mechanical properties evaluated by nanoindentation. The comparative analysis has allowed us to identify the capabilities of each system depending on the testing conditions and the possible synergies as a function of the chemical composition and film nature. Under lubricated harsh conditions (max. contact pressure 1.7 GPa) only coatings displaying hardness superior to 20 GPa could stand the sliding motion without failure. At lower contact pressures, a significant fraction of sp2 carbon (≥ 75%) is advantageous for reducing wear in boundary lubrication. WC/a-C, BCN and Ti-DLC films showed the best tribological response in dry sliding conditions. This fundamental information would be of relevance for assisting engineers in selecting best partnership for lubrication systems
publishDate 2014
dc.date.none.fl_str_mv 2014
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/11441/73220
https://doi.org/10.1016/j.surfcoat.2014.07.068
url https://hdl.handle.net/11441/73220
https://doi.org/10.1016/j.surfcoat.2014.07.068
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Surface and Coatings Technology, 257, 278-285.
CSD2008-00023
AT2007-66881-C02-01
MAT2011-29074-C02-01
http://dx.doi.org/10.1016/j.surfcoat.2014.07.068
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:idUS. Depósito de Investigación de la Universidad de Sevilla
instname:Universidad de Sevilla (US)
instname_str Universidad de Sevilla (US)
reponame_str idUS. Depósito de Investigación de la Universidad de Sevilla
collection idUS. Depósito de Investigación de la Universidad de Sevilla
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869408436989460480
score 15,300719

Similares en LA Referencia