Characterization of Sintered Aluminium Reinforced with Ultrafine Tungsten Carbide Particles
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10316/106440 https://doi.org/10.3390/met10111416 |
Resumo: | The strengthening e ect on aluminium (Al) by ultrafine particles of tungsten carbide (WC) after compacting and sintering was evaluated. The Al-1 vol.% WC mixture was prepared through a high-speed stirring technique, called assisted sonication. In this study, the e ects of compacting, sintering temperature and holding time were evaluated by composite microstructural characterization and by mechanical tests. The characterizations involved electron dispersive spectroscopy and X-ray di raction techniques for phase identification; electron backscattered di raction for crystallographic analysis; backscattered electrons and secondary electrons imaging for failure and wear studies. In all composites, hardness was determined; for the hardest composite, the tensile strength, flexural strength and ball scattering wear resistance were also evaluated. The Al-1 vol.% WC composite produced by assisted sonication, densified by cold compacting at 152 MPa and sintered at 640 C for 2 h at 5 104 Pa (high vacuum) exhibited the highest hardness, associated with an acceptable ductile behavior. This strengthening was associated with the formation of Al12W and grain refinement. |
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Characterization of Sintered Aluminium Reinforced with Ultrafine Tungsten Carbide Particlesaluminiumultrafine tungsten carbidesinteringstrengtheningmechanical propertiesmicrostructureThe strengthening e ect on aluminium (Al) by ultrafine particles of tungsten carbide (WC) after compacting and sintering was evaluated. The Al-1 vol.% WC mixture was prepared through a high-speed stirring technique, called assisted sonication. In this study, the e ects of compacting, sintering temperature and holding time were evaluated by composite microstructural characterization and by mechanical tests. The characterizations involved electron dispersive spectroscopy and X-ray di raction techniques for phase identification; electron backscattered di raction for crystallographic analysis; backscattered electrons and secondary electrons imaging for failure and wear studies. In all composites, hardness was determined; for the hardest composite, the tensile strength, flexural strength and ball scattering wear resistance were also evaluated. The Al-1 vol.% WC composite produced by assisted sonication, densified by cold compacting at 152 MPa and sintered at 640 C for 2 h at 5 104 Pa (high vacuum) exhibited the highest hardness, associated with an acceptable ductile behavior. This strengthening was associated with the formation of Al12W and grain refinement.MDPI2020info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://hdl.handle.net/10316/106440http://hdl.handle.net/10316/106440https://doi.org/10.3390/met10111416eng2075-4701Emadinia, OmidVieira, Maria TeresaVieira, Manuel Fernandoinfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-04-03T20:36:15Zoai:estudogeral.uc.pt:10316/106440Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T21:22:53.715141Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Characterization of Sintered Aluminium Reinforced with Ultrafine Tungsten Carbide Particles |
title |
Characterization of Sintered Aluminium Reinforced with Ultrafine Tungsten Carbide Particles |
spellingShingle |
Characterization of Sintered Aluminium Reinforced with Ultrafine Tungsten Carbide Particles Emadinia, Omid aluminium ultrafine tungsten carbide sintering strengthening mechanical properties microstructure |
title_short |
Characterization of Sintered Aluminium Reinforced with Ultrafine Tungsten Carbide Particles |
title_full |
Characterization of Sintered Aluminium Reinforced with Ultrafine Tungsten Carbide Particles |
title_fullStr |
Characterization of Sintered Aluminium Reinforced with Ultrafine Tungsten Carbide Particles |
title_full_unstemmed |
Characterization of Sintered Aluminium Reinforced with Ultrafine Tungsten Carbide Particles |
title_sort |
Characterization of Sintered Aluminium Reinforced with Ultrafine Tungsten Carbide Particles |
author |
Emadinia, Omid |
author_facet |
Emadinia, Omid Vieira, Maria Teresa Vieira, Manuel Fernando |
author_role |
author |
author2 |
Vieira, Maria Teresa Vieira, Manuel Fernando |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Emadinia, Omid Vieira, Maria Teresa Vieira, Manuel Fernando |
dc.subject.por.fl_str_mv |
aluminium ultrafine tungsten carbide sintering strengthening mechanical properties microstructure |
topic |
aluminium ultrafine tungsten carbide sintering strengthening mechanical properties microstructure |
description |
The strengthening e ect on aluminium (Al) by ultrafine particles of tungsten carbide (WC) after compacting and sintering was evaluated. The Al-1 vol.% WC mixture was prepared through a high-speed stirring technique, called assisted sonication. In this study, the e ects of compacting, sintering temperature and holding time were evaluated by composite microstructural characterization and by mechanical tests. The characterizations involved electron dispersive spectroscopy and X-ray di raction techniques for phase identification; electron backscattered di raction for crystallographic analysis; backscattered electrons and secondary electrons imaging for failure and wear studies. In all composites, hardness was determined; for the hardest composite, the tensile strength, flexural strength and ball scattering wear resistance were also evaluated. The Al-1 vol.% WC composite produced by assisted sonication, densified by cold compacting at 152 MPa and sintered at 640 C for 2 h at 5 104 Pa (high vacuum) exhibited the highest hardness, associated with an acceptable ductile behavior. This strengthening was associated with the formation of Al12W and grain refinement. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10316/106440 http://hdl.handle.net/10316/106440 https://doi.org/10.3390/met10111416 |
url |
http://hdl.handle.net/10316/106440 https://doi.org/10.3390/met10111416 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
2075-4701 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.publisher.none.fl_str_mv |
MDPI |
publisher.none.fl_str_mv |
MDPI |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
instname_str |
Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
repository.mail.fl_str_mv |
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