Scale effect in mechanical characterization of WC-Co composites

© 2017 Elsevier LtdThe study of mechanical response of materials at small length scales has gained importance due to the recent advances in micro- and nano-fabrication as well as testing systems. However, most of the reported work has been dedicated to investigate single-crystals or boundary-contain...

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Autores: Sandoval Ravotti, Daniela Andreina|||0000-0002-4743-475X, Rinaldi, Antonio, Tarragó, José María, Roa Rovira, Joan Josep|||0000-0002-7440-0766, Fair, Jonathan, Llanes Pitarch, Luis Miguel|||0000-0003-1054-1073
Tipo de recurso: artículo
Fecha de publicación:2018
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:2117/113897
Acceso en línea:https://hdl.handle.net/2117/113897
https://dx.doi.org/10.1016/j.ijrmhm.2017.12.029
Access Level:acceso abierto
Palabra clave:Tungsten carbide-cobalt alloys
Nanocomposites (Materials)
Failure mechanisms
micropillar
plastic deformation
size effect
uniaxial compression
WC-Co
Aliatges de carbur de tungstè i cobalt -- Propietats mecàniques
Materials nanoestructurals
Àrees temàtiques de la UPC::Enginyeria dels materials
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spelling Scale effect in mechanical characterization of WC-Co compositesSandoval Ravotti, Daniela Andreina|||0000-0002-4743-475XRinaldi, AntonioTarragó, José MaríaRoa Rovira, Joan Josep|||0000-0002-7440-0766Fair, JonathanLlanes Pitarch, Luis Miguel|||0000-0003-1054-1073Tungsten carbide-cobalt alloysNanocomposites (Materials)Failure mechanismsmicropillarplastic deformationsize effectuniaxial compressionWC-CoAliatges de carbur de tungstè i cobalt -- Propietats mecàniquesMaterials nanoestructuralsÀrees temàtiques de la UPC::Enginyeria dels materials© 2017 Elsevier LtdThe study of mechanical response of materials at small length scales has gained importance due to the recent advances in micro- and nano-fabrication as well as testing systems. However, most of the reported work has been dedicated to investigate single-crystals or boundary-containing metallic systems, while much less attention has been paid to composite materials, and in particular those combining soft and hard phases. In this work, a systematic procedure is followed for machining micropillars of diameters ranging from 1 to 4 µm in a WC-Co composite with a WC mean grain size around 1 µm, by means of focused ion beam milling. In-situ uniaxial compression of the micropillars and subsequent field emission scanning electron microscopy inspection were conducted. Clear size effects are evidenced. Smaller test specimens (probe size approaching the mean WC size) exhibit deformation/failure mechanisms observed for WC crystals; while for bigger sample sizes, the mechanical response involves several mechanisms directly linked with the microstructural characteristics of the bulk-like cemented carbide material. On the other hand, independent of micropillar size, carbide-carbide or carbide-binder interfaces are found to be preferential sites for nucleation of critical damage events.Peer Reviewed20182018-04-0120182018-02-07journal articlehttp://purl.org/coar/resource_type/c_6501AMhttp://purl.org/coar/version/c_ab4af688f83e57aainfo:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/2117/113897https://dx.doi.org/10.1016/j.ijrmhm.2017.12.029reponame:UPCommons. Portal del coneixement obert de la UPCinstname:Universitat Politècnica de Catalunya (UPC)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2Attribution-NonCommercial-NoDerivs 3.0 Spainhttp://creativecommons.org/licenses/by-nc-nd/3.0/es/info:eu-repo/semantics/openAccessoai:upcommons.upc.edu:2117/1138972026-05-27T15:37:01Z
dc.title.none.fl_str_mv Scale effect in mechanical characterization of WC-Co composites
title Scale effect in mechanical characterization of WC-Co composites
spellingShingle Scale effect in mechanical characterization of WC-Co composites
Sandoval Ravotti, Daniela Andreina|||0000-0002-4743-475X
Tungsten carbide-cobalt alloys
Nanocomposites (Materials)
Failure mechanisms
micropillar
plastic deformation
size effect
uniaxial compression
WC-Co
Aliatges de carbur de tungstè i cobalt -- Propietats mecàniques
Materials nanoestructurals
Àrees temàtiques de la UPC::Enginyeria dels materials
title_short Scale effect in mechanical characterization of WC-Co composites
title_full Scale effect in mechanical characterization of WC-Co composites
title_fullStr Scale effect in mechanical characterization of WC-Co composites
title_full_unstemmed Scale effect in mechanical characterization of WC-Co composites
title_sort Scale effect in mechanical characterization of WC-Co composites
dc.creator.none.fl_str_mv Sandoval Ravotti, Daniela Andreina|||0000-0002-4743-475X
Rinaldi, Antonio
Tarragó, José María
Roa Rovira, Joan Josep|||0000-0002-7440-0766
Fair, Jonathan
Llanes Pitarch, Luis Miguel|||0000-0003-1054-1073
author Sandoval Ravotti, Daniela Andreina|||0000-0002-4743-475X
author_facet Sandoval Ravotti, Daniela Andreina|||0000-0002-4743-475X
Rinaldi, Antonio
Tarragó, José María
Roa Rovira, Joan Josep|||0000-0002-7440-0766
Fair, Jonathan
Llanes Pitarch, Luis Miguel|||0000-0003-1054-1073
author_role author
author2 Rinaldi, Antonio
Tarragó, José María
Roa Rovira, Joan Josep|||0000-0002-7440-0766
Fair, Jonathan
Llanes Pitarch, Luis Miguel|||0000-0003-1054-1073
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Tungsten carbide-cobalt alloys
Nanocomposites (Materials)
Failure mechanisms
micropillar
plastic deformation
size effect
uniaxial compression
WC-Co
Aliatges de carbur de tungstè i cobalt -- Propietats mecàniques
Materials nanoestructurals
Àrees temàtiques de la UPC::Enginyeria dels materials
topic Tungsten carbide-cobalt alloys
Nanocomposites (Materials)
Failure mechanisms
micropillar
plastic deformation
size effect
uniaxial compression
WC-Co
Aliatges de carbur de tungstè i cobalt -- Propietats mecàniques
Materials nanoestructurals
Àrees temàtiques de la UPC::Enginyeria dels materials
description © 2017 Elsevier LtdThe study of mechanical response of materials at small length scales has gained importance due to the recent advances in micro- and nano-fabrication as well as testing systems. However, most of the reported work has been dedicated to investigate single-crystals or boundary-containing metallic systems, while much less attention has been paid to composite materials, and in particular those combining soft and hard phases. In this work, a systematic procedure is followed for machining micropillars of diameters ranging from 1 to 4 µm in a WC-Co composite with a WC mean grain size around 1 µm, by means of focused ion beam milling. In-situ uniaxial compression of the micropillars and subsequent field emission scanning electron microscopy inspection were conducted. Clear size effects are evidenced. Smaller test specimens (probe size approaching the mean WC size) exhibit deformation/failure mechanisms observed for WC crystals; while for bigger sample sizes, the mechanical response involves several mechanisms directly linked with the microstructural characteristics of the bulk-like cemented carbide material. On the other hand, independent of micropillar size, carbide-carbide or carbide-binder interfaces are found to be preferential sites for nucleation of critical damage events.
publishDate 2018
dc.date.none.fl_str_mv 2018
2018-04-01
2018
2018-02-07
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/2117/113897
https://dx.doi.org/10.1016/j.ijrmhm.2017.12.029
url https://hdl.handle.net/2117/113897
https://dx.doi.org/10.1016/j.ijrmhm.2017.12.029
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
Attribution-NonCommercial-NoDerivs 3.0 Spain
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
Attribution-NonCommercial-NoDerivs 3.0 Spain
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
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 15,300719

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