Implementation of an effective time-saving two-stage methodology for microstructural characterization of cemented carbides

Linear intercept on scanning electron microscopy micrographs is the most commonly used measurement method to determine carbide grain size and contiguity in WC–Co cemented carbides (hardmetals). However, it involves manual time-consuming measurements and is critically dependent on the quality of the...

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Autores: Tarrago, Jose Maria, Coureaux Mustelier, David, Torres, Yadir, Wu, F, Al-Dawery, Ihsan, Llanes Pitarch, Luis Miguel|||0000-0003-1054-1073
Formato: artículo
Fecha de publicación:2016
País:España
Recursos:Universitat Politècnica de Catalunya (UPC)
Repositorio:UPCommons. Portal del coneixement obert de la UPC
Idioma:inglés
OAI Identifier:oai:upcommons.upc.edu:2117/101425
Acesso em linha:https://hdl.handle.net/2117/101425
https://dx.doi.org/10.1016/j.ijrmhm.2015.10.006
Access Level:acceso abierto
Palavra-chave:Carbides
Nanostructured materials
Cemented carbides
Carbide grain size
Carbide contiguity
Microstructure
Image analysis
Materials nanoestructurats
Carburs -- Propietats mecàniques
Àrees temàtiques de la UPC::Enginyeria dels materials
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spelling Implementation of an effective time-saving two-stage methodology for microstructural characterization of cemented carbidesTarrago, Jose MariaCoureaux Mustelier, DavidTorres, YadirWu, FAl-Dawery, IhsanLlanes Pitarch, Luis Miguel|||0000-0003-1054-1073CarbidesNanostructured materialsCemented carbidesCarbide grain sizeCarbide contiguityMicrostructureImage analysisMaterials nanoestructuratsCarburs -- Propietats mecàniquesÀrees temàtiques de la UPC::Enginyeria dels materialsLinear intercept on scanning electron microscopy micrographs is the most commonly used measurement method to determine carbide grain size and contiguity in WC–Co cemented carbides (hardmetals). However, it involves manual time-consuming measurements and is critically dependent on the quality of the micrographs as well as on the identification and definition of grain boundaries. In this study a two-stage methodology for microstructural characterization of hardmetals is presented. First, a digital semi-automatic image analysis procedure for grain size determination of the carbide phase is presented. It involves an experimental assessment of grain size on processed images corresponding to a series of WC–Co and WC–Ni cemented carbide grades with different microstructural characteristics. Obtained results are then compared to the values obtained by means of the linear intercept technique. A good correlation between the mean grain sizes determined following both measurement techniques was attained. Based on experimental findings, a series of empirical relations were found to correlate grain size distributions obtained following both methods. Second, an empirical relation for estimating carbide contiguity in WC–Co cemented carbides is proposed. This relation considers simultaneously the influence of the binder content and the experimentally determined mean grain size on contiguity. The proposed equation for contiguity estimation is based on extensive data collection from open literature. An excellent agreement was attained between contiguity values estimated from such equation and those obtained using the linear intercept technique. This validates the two-stage procedure as an effective time-saving methodology for microstructural characterization of WC–Co cemented carbides.Peer Reviewed20162016-01-0120172017-02-23journal articlehttp://purl.org/coar/resource_type/c_6501AMhttp://purl.org/coar/version/c_ab4af688f83e57aainfo:eu-repo/semantics/articleapplication/pdfapplication/pdfhttps://hdl.handle.net/2117/101425https://dx.doi.org/10.1016/j.ijrmhm.2015.10.006reponame: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:2117/1014252026-05-27T15:37:01Z
dc.title.none.fl_str_mv Implementation of an effective time-saving two-stage methodology for microstructural characterization of cemented carbides
title Implementation of an effective time-saving two-stage methodology for microstructural characterization of cemented carbides
spellingShingle Implementation of an effective time-saving two-stage methodology for microstructural characterization of cemented carbides
Tarrago, Jose Maria
Carbides
Nanostructured materials
Cemented carbides
Carbide grain size
Carbide contiguity
Microstructure
Image analysis
Materials nanoestructurats
Carburs -- Propietats mecàniques
Àrees temàtiques de la UPC::Enginyeria dels materials
title_short Implementation of an effective time-saving two-stage methodology for microstructural characterization of cemented carbides
title_full Implementation of an effective time-saving two-stage methodology for microstructural characterization of cemented carbides
title_fullStr Implementation of an effective time-saving two-stage methodology for microstructural characterization of cemented carbides
title_full_unstemmed Implementation of an effective time-saving two-stage methodology for microstructural characterization of cemented carbides
title_sort Implementation of an effective time-saving two-stage methodology for microstructural characterization of cemented carbides
dc.creator.none.fl_str_mv Tarrago, Jose Maria
Coureaux Mustelier, David
Torres, Yadir
Wu, F
Al-Dawery, Ihsan
Llanes Pitarch, Luis Miguel|||0000-0003-1054-1073
author Tarrago, Jose Maria
author_facet Tarrago, Jose Maria
Coureaux Mustelier, David
Torres, Yadir
Wu, F
Al-Dawery, Ihsan
Llanes Pitarch, Luis Miguel|||0000-0003-1054-1073
author_role author
author2 Coureaux Mustelier, David
Torres, Yadir
Wu, F
Al-Dawery, Ihsan
Llanes Pitarch, Luis Miguel|||0000-0003-1054-1073
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Carbides
Nanostructured materials
Cemented carbides
Carbide grain size
Carbide contiguity
Microstructure
Image analysis
Materials nanoestructurats
Carburs -- Propietats mecàniques
Àrees temàtiques de la UPC::Enginyeria dels materials
topic Carbides
Nanostructured materials
Cemented carbides
Carbide grain size
Carbide contiguity
Microstructure
Image analysis
Materials nanoestructurats
Carburs -- Propietats mecàniques
Àrees temàtiques de la UPC::Enginyeria dels materials
description Linear intercept on scanning electron microscopy micrographs is the most commonly used measurement method to determine carbide grain size and contiguity in WC–Co cemented carbides (hardmetals). However, it involves manual time-consuming measurements and is critically dependent on the quality of the micrographs as well as on the identification and definition of grain boundaries. In this study a two-stage methodology for microstructural characterization of hardmetals is presented. First, a digital semi-automatic image analysis procedure for grain size determination of the carbide phase is presented. It involves an experimental assessment of grain size on processed images corresponding to a series of WC–Co and WC–Ni cemented carbide grades with different microstructural characteristics. Obtained results are then compared to the values obtained by means of the linear intercept technique. A good correlation between the mean grain sizes determined following both measurement techniques was attained. Based on experimental findings, a series of empirical relations were found to correlate grain size distributions obtained following both methods. Second, an empirical relation for estimating carbide contiguity in WC–Co cemented carbides is proposed. This relation considers simultaneously the influence of the binder content and the experimentally determined mean grain size on contiguity. The proposed equation for contiguity estimation is based on extensive data collection from open literature. An excellent agreement was attained between contiguity values estimated from such equation and those obtained using the linear intercept technique. This validates the two-stage procedure as an effective time-saving methodology for microstructural characterization of WC–Co cemented carbides.
publishDate 2016
dc.date.none.fl_str_mv 2016
2016-01-01
2017
2017-02-23
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/2117/101425
https://dx.doi.org/10.1016/j.ijrmhm.2015.10.006
url https://hdl.handle.net/2117/101425
https://dx.doi.org/10.1016/j.ijrmhm.2015.10.006
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
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 15,300724

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