Substrate surface finish effects on scratch resistance and failure mechanisms of TiN-coated hardmetals

In this study, the influence of substrate surface finish on scratch resistance and associated failure mechanisms is investigated in the case of a TiN-coated hardmetal. Three different surface finish conditions are studied: as-sintered (AS), ground (G), and mirror-like polished (P). For G conditioned...

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Detalles Bibliográficos
Autores: Yang, Jing, Roa Rovira, Joan Josep|||0000-0002-7440-0766, Odén, Magnus, Johansson Joesaar, M.P, Esteve, Joan, Llanes Pitarch, Luis Miguel|||0000-0003-1054-1073
Tipo de recurso: artículo
Fecha de publicación:2015
País:España
Institución:Universitat Politècnica de Catalunya (UPC)
Repositorio:UPCommons. Portal del coneixement obert de la UPC
Idioma:inglés
OAI Identifier:oai:upcommons.upc.edu:2117/86628
Acceso en línea:https://hdl.handle.net/2117/86628
https://dx.doi.org/10.1016/j.surfcoat.2015.01.038
Access Level:acceso abierto
Palabra clave:Coated hardmetal
Grinding
Scratch failure mechanisms
Scratch resistance
Substrate surface finish
Materials -- Propietats mecàniques
Àrees temàtiques de la UPC::Enginyeria dels materials
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spelling Substrate surface finish effects on scratch resistance and failure mechanisms of TiN-coated hardmetalsYang, JingRoa Rovira, Joan Josep|||0000-0002-7440-0766Odén, MagnusJohansson Joesaar, M.PEsteve, JoanLlanes Pitarch, Luis Miguel|||0000-0003-1054-1073Coated hardmetalGrindingScratch failure mechanismsScratch resistanceSubstrate surface finishMaterials -- Propietats mecàniquesÀrees temàtiques de la UPC::Enginyeria dels materialsIn this study, the influence of substrate surface finish on scratch resistance and associated failure mechanisms is investigated in the case of a TiN-coated hardmetal. Three different surface finish conditions are studied: as-sintered (AS), ground (G), and mirror-like polished (P). For G conditioned samples, scratch tests are conducted both parallel and perpendicular to the direction of the grinding grooves. It is found that coated AS, G and P samples exhibit similar critical load for initial substrate exposure and the same brittle adhesive failure mode. However, the damage scenarios are different, i.e. the substrate exposure is discrete and localized to the scratch tracks for G samples while a more pronounced and continuous exposure is seen for AS and P ones. Aiming to understand the role played by the grinding-induced compressive residual stresses, the study is extended to coated systems where ground substrates are thermal annealed (for relieving stresses) before being ion etched and coated. It yielded lower critical loads and changes in the mechanisms for the scratch-related failure; the latter depending on the relative orientation between scratching and grinding directions.Peer ReviewedElsevier20152015-03-1520162016-05-05journal articlehttp://purl.org/coar/resource_type/c_6501AMhttp://purl.org/coar/version/c_ab4af688f83e57aainfo:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/2117/86628https://dx.doi.org/10.1016/j.surfcoat.2015.01.038reponame:UPCommons. Portal del coneixement obert de la UPCinstname:Universitat Politècnica de Catalunya (UPC)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2http://creativecommons.org/licenses/by-nc-nd/3.0/es/info:eu-repo/semantics/openAccessoai:upcommons.upc.edu:2117/866282026-05-27T15:37:01Z
dc.title.none.fl_str_mv Substrate surface finish effects on scratch resistance and failure mechanisms of TiN-coated hardmetals
title Substrate surface finish effects on scratch resistance and failure mechanisms of TiN-coated hardmetals
spellingShingle Substrate surface finish effects on scratch resistance and failure mechanisms of TiN-coated hardmetals
Yang, Jing
Coated hardmetal
Grinding
Scratch failure mechanisms
Scratch resistance
Substrate surface finish
Materials -- Propietats mecàniques
Àrees temàtiques de la UPC::Enginyeria dels materials
title_short Substrate surface finish effects on scratch resistance and failure mechanisms of TiN-coated hardmetals
title_full Substrate surface finish effects on scratch resistance and failure mechanisms of TiN-coated hardmetals
title_fullStr Substrate surface finish effects on scratch resistance and failure mechanisms of TiN-coated hardmetals
title_full_unstemmed Substrate surface finish effects on scratch resistance and failure mechanisms of TiN-coated hardmetals
title_sort Substrate surface finish effects on scratch resistance and failure mechanisms of TiN-coated hardmetals
dc.creator.none.fl_str_mv Yang, Jing
Roa Rovira, Joan Josep|||0000-0002-7440-0766
Odén, Magnus
Johansson Joesaar, M.P
Esteve, Joan
Llanes Pitarch, Luis Miguel|||0000-0003-1054-1073
author Yang, Jing
author_facet Yang, Jing
Roa Rovira, Joan Josep|||0000-0002-7440-0766
Odén, Magnus
Johansson Joesaar, M.P
Esteve, Joan
Llanes Pitarch, Luis Miguel|||0000-0003-1054-1073
author_role author
author2 Roa Rovira, Joan Josep|||0000-0002-7440-0766
Odén, Magnus
Johansson Joesaar, M.P
Esteve, Joan
Llanes Pitarch, Luis Miguel|||0000-0003-1054-1073
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Coated hardmetal
Grinding
Scratch failure mechanisms
Scratch resistance
Substrate surface finish
Materials -- Propietats mecàniques
Àrees temàtiques de la UPC::Enginyeria dels materials
topic Coated hardmetal
Grinding
Scratch failure mechanisms
Scratch resistance
Substrate surface finish
Materials -- Propietats mecàniques
Àrees temàtiques de la UPC::Enginyeria dels materials
description In this study, the influence of substrate surface finish on scratch resistance and associated failure mechanisms is investigated in the case of a TiN-coated hardmetal. Three different surface finish conditions are studied: as-sintered (AS), ground (G), and mirror-like polished (P). For G conditioned samples, scratch tests are conducted both parallel and perpendicular to the direction of the grinding grooves. It is found that coated AS, G and P samples exhibit similar critical load for initial substrate exposure and the same brittle adhesive failure mode. However, the damage scenarios are different, i.e. the substrate exposure is discrete and localized to the scratch tracks for G samples while a more pronounced and continuous exposure is seen for AS and P ones. Aiming to understand the role played by the grinding-induced compressive residual stresses, the study is extended to coated systems where ground substrates are thermal annealed (for relieving stresses) before being ion etched and coated. It yielded lower critical loads and changes in the mechanisms for the scratch-related failure; the latter depending on the relative orientation between scratching and grinding directions.
publishDate 2015
dc.date.none.fl_str_mv 2015
2015-03-15
2016
2016-05-05
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
AM
http://purl.org/coar/version/c_ab4af688f83e57aa
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/2117/86628
https://dx.doi.org/10.1016/j.surfcoat.2015.01.038
url https://hdl.handle.net/2117/86628
https://dx.doi.org/10.1016/j.surfcoat.2015.01.038
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2

http://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2

http://creativecommons.org/licenses/by-nc-nd/3.0/es/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:UPCommons. Portal del coneixement obert de la UPC
instname:Universitat Politècnica de Catalunya (UPC)
instname_str Universitat Politècnica de Catalunya (UPC)
reponame_str UPCommons. Portal del coneixement obert de la UPC
collection UPCommons. Portal del coneixement obert de la UPC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,301629

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