Production and characterization of austenitic stainless steel cast parts reinforced with WC particles fabricated by ex situ technique

Detalhes bibliográficos
Autor(a) principal: Moreira, Aida B.
Data de Publicação: 2021
Outros Autores: Ribeiro, Laura M. M., Lacerda, Pedro, Pinto, A. M. P., Vieira, Manuel F.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: https://hdl.handle.net/1822/77944
Resumo: In this work, austenitic stainless steel specimens were locally reinforced with WC particles. The reinforcements were fabricated via an ex situ technique based on powder technology. Mixtures of WC, Fe, and M0101 binder were cold-pressed to obtain powder compacts. After debinding and sintering, the porous WC–Fe inserts were fixed in a mold cavity, where they reacted with liquid metal. Microstructural analysis was conducted for characterization of the phases constituting the produced reinforcement zone and the bonding interface. The results revealed that the reinforcement is a graded material with compositional and microstructural gradients throughout its thickness. The zone nearest to the surface has a ferrous matrix with homogeneously distributed WC particles and (Fe,W,Cr)<sub>6</sub>C and (Fe,W,Cr)<sub>3</sub>C carbides, formed from the liquid metal reaction with the insert. This precipitation leads to austenite destabilization, which transforms into martensite during cooling. A vast dissolution of the WC particles occurred in the inner zones, resulting in more intense carbides formation. Cr-rich carbides ((Fe,Cr,W)<sub>7</sub>C<sub>3</sub>, and (Fe,Cr,W)<sub>23</sub>C<sub>6</sub>) formed in the interdendritic regions of austenite; this zone is characterized by coarse dendrites of austenite and a multi-phase interdendritic network composed of carbides. An interface free of discontinuities and porosities indicates good bonding of the reinforcement zone to stainless steel.
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spelling Production and characterization of austenitic stainless steel cast parts reinforced with WC particles fabricated by ex situ techniqueaustenitic stainless steelex situ techniquelocal reinforcementmetal matrix compositemicrostructural characterizationtungsten carbideEngenharia e Tecnologia::Engenharia MecânicaScience & TechnologyIn this work, austenitic stainless steel specimens were locally reinforced with WC particles. The reinforcements were fabricated via an ex situ technique based on powder technology. Mixtures of WC, Fe, and M0101 binder were cold-pressed to obtain powder compacts. After debinding and sintering, the porous WC–Fe inserts were fixed in a mold cavity, where they reacted with liquid metal. Microstructural analysis was conducted for characterization of the phases constituting the produced reinforcement zone and the bonding interface. The results revealed that the reinforcement is a graded material with compositional and microstructural gradients throughout its thickness. The zone nearest to the surface has a ferrous matrix with homogeneously distributed WC particles and (Fe,W,Cr)<sub>6</sub>C and (Fe,W,Cr)<sub>3</sub>C carbides, formed from the liquid metal reaction with the insert. This precipitation leads to austenite destabilization, which transforms into martensite during cooling. A vast dissolution of the WC particles occurred in the inner zones, resulting in more intense carbides formation. Cr-rich carbides ((Fe,Cr,W)<sub>7</sub>C<sub>3</sub>, and (Fe,Cr,W)<sub>23</sub>C<sub>6</sub>) formed in the interdendritic regions of austenite; this zone is characterized by coarse dendrites of austenite and a multi-phase interdendritic network composed of carbides. An interface free of discontinuities and porosities indicates good bonding of the reinforcement zone to stainless steel.This research was funded by FEDER through the program P2020|COMPETE, Projetos em Copromoção (project POCI-01-0247-FEDER-033417), and the program P2020|Norte2020, Programas doutorais (NORTE-08-5369-FSE-000051).Multidisciplinary Digital Publishing InstituteUniversidade do MinhoMoreira, Aida B.Ribeiro, Laura M. M.Lacerda, PedroPinto, A. M. P.Vieira, Manuel F.2021-12-182021-12-18T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/1822/77944engMoreira, A.B.; Ribeiro, L.M.M.; Lacerda, P.; Pinto, A.M.P.; Vieira, M.F. Production and Characterization of Austenitic Stainless Steel Cast Parts Reinforced with WC Particles Fabricated by Ex Situ Technique. Materials 2021, 14, 7855. https://doi.org/10.3390/ma142478551996-194410.3390/ma14247855https://www.mdpi.com/1996-1944/14/24/7855info: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:RCAAP2023-07-21T12:06:23Zoai:repositorium.sdum.uminho.pt:1822/77944Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T18:57:02.711856Repositório 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 Production and characterization of austenitic stainless steel cast parts reinforced with WC particles fabricated by ex situ technique
title Production and characterization of austenitic stainless steel cast parts reinforced with WC particles fabricated by ex situ technique
spellingShingle Production and characterization of austenitic stainless steel cast parts reinforced with WC particles fabricated by ex situ technique
Moreira, Aida B.
austenitic stainless steel
ex situ technique
local reinforcement
metal matrix composite
microstructural characterization
tungsten carbide
Engenharia e Tecnologia::Engenharia Mecânica
Science & Technology
title_short Production and characterization of austenitic stainless steel cast parts reinforced with WC particles fabricated by ex situ technique
title_full Production and characterization of austenitic stainless steel cast parts reinforced with WC particles fabricated by ex situ technique
title_fullStr Production and characterization of austenitic stainless steel cast parts reinforced with WC particles fabricated by ex situ technique
title_full_unstemmed Production and characterization of austenitic stainless steel cast parts reinforced with WC particles fabricated by ex situ technique
title_sort Production and characterization of austenitic stainless steel cast parts reinforced with WC particles fabricated by ex situ technique
author Moreira, Aida B.
author_facet Moreira, Aida B.
Ribeiro, Laura M. M.
Lacerda, Pedro
Pinto, A. M. P.
Vieira, Manuel F.
author_role author
author2 Ribeiro, Laura M. M.
Lacerda, Pedro
Pinto, A. M. P.
Vieira, Manuel F.
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Universidade do Minho
dc.contributor.author.fl_str_mv Moreira, Aida B.
Ribeiro, Laura M. M.
Lacerda, Pedro
Pinto, A. M. P.
Vieira, Manuel F.
dc.subject.por.fl_str_mv austenitic stainless steel
ex situ technique
local reinforcement
metal matrix composite
microstructural characterization
tungsten carbide
Engenharia e Tecnologia::Engenharia Mecânica
Science & Technology
topic austenitic stainless steel
ex situ technique
local reinforcement
metal matrix composite
microstructural characterization
tungsten carbide
Engenharia e Tecnologia::Engenharia Mecânica
Science & Technology
description In this work, austenitic stainless steel specimens were locally reinforced with WC particles. The reinforcements were fabricated via an ex situ technique based on powder technology. Mixtures of WC, Fe, and M0101 binder were cold-pressed to obtain powder compacts. After debinding and sintering, the porous WC–Fe inserts were fixed in a mold cavity, where they reacted with liquid metal. Microstructural analysis was conducted for characterization of the phases constituting the produced reinforcement zone and the bonding interface. The results revealed that the reinforcement is a graded material with compositional and microstructural gradients throughout its thickness. The zone nearest to the surface has a ferrous matrix with homogeneously distributed WC particles and (Fe,W,Cr)<sub>6</sub>C and (Fe,W,Cr)<sub>3</sub>C carbides, formed from the liquid metal reaction with the insert. This precipitation leads to austenite destabilization, which transforms into martensite during cooling. A vast dissolution of the WC particles occurred in the inner zones, resulting in more intense carbides formation. Cr-rich carbides ((Fe,Cr,W)<sub>7</sub>C<sub>3</sub>, and (Fe,Cr,W)<sub>23</sub>C<sub>6</sub>) formed in the interdendritic regions of austenite; this zone is characterized by coarse dendrites of austenite and a multi-phase interdendritic network composed of carbides. An interface free of discontinuities and porosities indicates good bonding of the reinforcement zone to stainless steel.
publishDate 2021
dc.date.none.fl_str_mv 2021-12-18
2021-12-18T00:00:00Z
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 https://hdl.handle.net/1822/77944
url https://hdl.handle.net/1822/77944
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Moreira, A.B.; Ribeiro, L.M.M.; Lacerda, P.; Pinto, A.M.P.; Vieira, M.F. Production and Characterization of Austenitic Stainless Steel Cast Parts Reinforced with WC Particles Fabricated by Ex Situ Technique. Materials 2021, 14, 7855. https://doi.org/10.3390/ma14247855
1996-1944
10.3390/ma14247855
https://www.mdpi.com/1996-1944/14/24/7855
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Multidisciplinary Digital Publishing Institute
publisher.none.fl_str_mv Multidisciplinary Digital Publishing Institute
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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