Microstructure and mechanical properties of WC-Co reinforced with NbC

Detalhes bibliográficos
Autor(a) principal: Acchar,Wilson
Data de Publicação: 2004
Outros Autores: Zollfrank,Cordt, Greil,Peter
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Materials research (São Carlos. Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392004000300012
Resumo: Cemented carbides such as tungsten carbide-cobalt WC-Co composites have been widely used as cutting tool materials. Several reports have shown the influence of different factors such as grain size, type and amount of binder phase and the addition of hard particles on the properties of WC-Co. The purpose of this work was to investigate the effect of niobium carbide on the microstructure and mechanical properties of WC-Co. Specimens of WC-Co reinforced with NbC were mixed and subsequently hot-pressed in a inert atmosphere. The WC-Co-NbC composite material exhibited high hardness values (18.9 GPa), flexural strength (2100 MPa) and fracture toughness (11.2 MPa.m½ ). TEM analysis has shown a bimodal grain size distribution of WC.
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spelling Microstructure and mechanical properties of WC-Co reinforced with NbCtungsten carbidehardnessfracture toughnessniobium carbidemicrostructureCemented carbides such as tungsten carbide-cobalt WC-Co composites have been widely used as cutting tool materials. Several reports have shown the influence of different factors such as grain size, type and amount of binder phase and the addition of hard particles on the properties of WC-Co. The purpose of this work was to investigate the effect of niobium carbide on the microstructure and mechanical properties of WC-Co. Specimens of WC-Co reinforced with NbC were mixed and subsequently hot-pressed in a inert atmosphere. The WC-Co-NbC composite material exhibited high hardness values (18.9 GPa), flexural strength (2100 MPa) and fracture toughness (11.2 MPa.m½ ). TEM analysis has shown a bimodal grain size distribution of WC.ABM, ABC, ABPol2004-09-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392004000300012Materials Research v.7 n.3 2004reponame:Materials research (São Carlos. Online)instname:Universidade Federal de São Carlos (UFSCAR)instacron:ABM ABC ABPOL10.1590/S1516-14392004000300012info:eu-repo/semantics/openAccessAcchar,WilsonZollfrank,CordtGreil,Petereng2004-08-13T00:00:00Zoai:scielo:S1516-14392004000300012Revistahttp://www.scielo.br/mrPUBhttps://old.scielo.br/oai/scielo-oai.phpdedz@power.ufscar.br1980-53731516-1439opendoar:2004-08-13T00:00Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR)false
dc.title.none.fl_str_mv Microstructure and mechanical properties of WC-Co reinforced with NbC
title Microstructure and mechanical properties of WC-Co reinforced with NbC
spellingShingle Microstructure and mechanical properties of WC-Co reinforced with NbC
Acchar,Wilson
tungsten carbide
hardness
fracture toughness
niobium carbide
microstructure
title_short Microstructure and mechanical properties of WC-Co reinforced with NbC
title_full Microstructure and mechanical properties of WC-Co reinforced with NbC
title_fullStr Microstructure and mechanical properties of WC-Co reinforced with NbC
title_full_unstemmed Microstructure and mechanical properties of WC-Co reinforced with NbC
title_sort Microstructure and mechanical properties of WC-Co reinforced with NbC
author Acchar,Wilson
author_facet Acchar,Wilson
Zollfrank,Cordt
Greil,Peter
author_role author
author2 Zollfrank,Cordt
Greil,Peter
author2_role author
author
dc.contributor.author.fl_str_mv Acchar,Wilson
Zollfrank,Cordt
Greil,Peter
dc.subject.por.fl_str_mv tungsten carbide
hardness
fracture toughness
niobium carbide
microstructure
topic tungsten carbide
hardness
fracture toughness
niobium carbide
microstructure
description Cemented carbides such as tungsten carbide-cobalt WC-Co composites have been widely used as cutting tool materials. Several reports have shown the influence of different factors such as grain size, type and amount of binder phase and the addition of hard particles on the properties of WC-Co. The purpose of this work was to investigate the effect of niobium carbide on the microstructure and mechanical properties of WC-Co. Specimens of WC-Co reinforced with NbC were mixed and subsequently hot-pressed in a inert atmosphere. The WC-Co-NbC composite material exhibited high hardness values (18.9 GPa), flexural strength (2100 MPa) and fracture toughness (11.2 MPa.m½ ). TEM analysis has shown a bimodal grain size distribution of WC.
publishDate 2004
dc.date.none.fl_str_mv 2004-09-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392004000300012
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392004000300012
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S1516-14392004000300012
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv ABM, ABC, ABPol
publisher.none.fl_str_mv ABM, ABC, ABPol
dc.source.none.fl_str_mv Materials Research v.7 n.3 2004
reponame:Materials research (São Carlos. Online)
instname:Universidade Federal de São Carlos (UFSCAR)
instacron:ABM ABC ABPOL
instname_str Universidade Federal de São Carlos (UFSCAR)
instacron_str ABM ABC ABPOL
institution ABM ABC ABPOL
reponame_str Materials research (São Carlos. Online)
collection Materials research (São Carlos. Online)
repository.name.fl_str_mv Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR)
repository.mail.fl_str_mv dedz@power.ufscar.br
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