Corrosion behaviour of Al/Al3Ti and Al/Al3Zr functionally graded materials produced by centrifugal solid-particle method: Influence of the intermetallics volume fraction

Detalhes bibliográficos
Autor(a) principal: Ferreira, S. C.
Data de Publicação: 2011
Outros Autores: Rocha, L. A., Ariza, E., Sequeira, P. D., Watanabe, Yoshimi, Fernandes, J. C. S.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/1822/15758
Resumo: Intermetallic particles, Al3Ti and Al3Zr were formed in Al–5mass%Ti and Al–5mass%Zr alloys, respectively, by centrifugal casting, in order to create functionally graded materials (FGMs). At present, no information is available on the influence of the amount of intermetallics on the electrochemical properties of these alloys. In this paper, the corrosion resistance of Al/Al3Ti and Al/Al3Zr FGMs was investigated by open-circuit measurements, potentiodynamic polarization and electrochemical impedance spectroscopy. Results suggests that the corrosion resistance of the FGMs is affected by galvanic effects between the intermetallic particles and the metallic matrix. Lower centrifugal forces resulted in an improvement of the electrochemical properties.
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spelling Corrosion behaviour of Al/Al3Ti and Al/Al3Zr functionally graded materials produced by centrifugal solid-particle method: Influence of the intermetallics volume fractionAluminiumIntermetallicsEISSEMPitting corrosionA. AluminiumA. IntermetallicsB. EISB. SEMC. Pitting corrosionScience & TechnologyIntermetallic particles, Al3Ti and Al3Zr were formed in Al–5mass%Ti and Al–5mass%Zr alloys, respectively, by centrifugal casting, in order to create functionally graded materials (FGMs). At present, no information is available on the influence of the amount of intermetallics on the electrochemical properties of these alloys. In this paper, the corrosion resistance of Al/Al3Ti and Al/Al3Zr FGMs was investigated by open-circuit measurements, potentiodynamic polarization and electrochemical impedance spectroscopy. Results suggests that the corrosion resistance of the FGMs is affected by galvanic effects between the intermetallic particles and the metallic matrix. Lower centrifugal forces resulted in an improvement of the electrochemical properties.One of the authors (Y.W.) gratefully acknowledges the financial support provided by "Tokai Region Nanotechnology Manufacturing Cluster in Knowledge Cluster Initiative" by the Ministry of Education, Culture, Sports, Science and Technology of Japan. Acknowledgments also to "FCT", Portugal, through the Project SFRH/BPD/5518/2001.Pergamon PressUniversidade do MinhoFerreira, S. C.Rocha, L. A.Ariza, E.Sequeira, P. D.Watanabe, YoshimiFernandes, J. C. S.20112011-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/1822/15758engFerreira, S.C.; Rocha, L.A.; Ariza, E.; Sequeira, P.D.; Watanabe, Yoshimi; Fernandes, J.C.S.Corrosion behaviour of Al/Al3Ti and Al/Al3Zr functionally graded materials produced by centrifugal solid-particle method: Influence of the intermetallics volume fraction, Corrosion Science, 53, 6, 2058-2065, 2011.0010-938X10.1016/j.corsci.2011.02.010info: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:RCAAP2023-07-21T11:56:33Zoai:repositorium.sdum.uminho.pt:1822/15758Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T18:46:10.109639Repositório 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 Corrosion behaviour of Al/Al3Ti and Al/Al3Zr functionally graded materials produced by centrifugal solid-particle method: Influence of the intermetallics volume fraction
title Corrosion behaviour of Al/Al3Ti and Al/Al3Zr functionally graded materials produced by centrifugal solid-particle method: Influence of the intermetallics volume fraction
spellingShingle Corrosion behaviour of Al/Al3Ti and Al/Al3Zr functionally graded materials produced by centrifugal solid-particle method: Influence of the intermetallics volume fraction
Ferreira, S. C.
Aluminium
Intermetallics
EIS
SEM
Pitting corrosion
A. Aluminium
A. Intermetallics
B. EIS
B. SEM
C. Pitting corrosion
Science & Technology
title_short Corrosion behaviour of Al/Al3Ti and Al/Al3Zr functionally graded materials produced by centrifugal solid-particle method: Influence of the intermetallics volume fraction
title_full Corrosion behaviour of Al/Al3Ti and Al/Al3Zr functionally graded materials produced by centrifugal solid-particle method: Influence of the intermetallics volume fraction
title_fullStr Corrosion behaviour of Al/Al3Ti and Al/Al3Zr functionally graded materials produced by centrifugal solid-particle method: Influence of the intermetallics volume fraction
title_full_unstemmed Corrosion behaviour of Al/Al3Ti and Al/Al3Zr functionally graded materials produced by centrifugal solid-particle method: Influence of the intermetallics volume fraction
title_sort Corrosion behaviour of Al/Al3Ti and Al/Al3Zr functionally graded materials produced by centrifugal solid-particle method: Influence of the intermetallics volume fraction
author Ferreira, S. C.
author_facet Ferreira, S. C.
Rocha, L. A.
Ariza, E.
Sequeira, P. D.
Watanabe, Yoshimi
Fernandes, J. C. S.
author_role author
author2 Rocha, L. A.
Ariza, E.
Sequeira, P. D.
Watanabe, Yoshimi
Fernandes, J. C. S.
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv Universidade do Minho
dc.contributor.author.fl_str_mv Ferreira, S. C.
Rocha, L. A.
Ariza, E.
Sequeira, P. D.
Watanabe, Yoshimi
Fernandes, J. C. S.
dc.subject.por.fl_str_mv Aluminium
Intermetallics
EIS
SEM
Pitting corrosion
A. Aluminium
A. Intermetallics
B. EIS
B. SEM
C. Pitting corrosion
Science & Technology
topic Aluminium
Intermetallics
EIS
SEM
Pitting corrosion
A. Aluminium
A. Intermetallics
B. EIS
B. SEM
C. Pitting corrosion
Science & Technology
description Intermetallic particles, Al3Ti and Al3Zr were formed in Al–5mass%Ti and Al–5mass%Zr alloys, respectively, by centrifugal casting, in order to create functionally graded materials (FGMs). At present, no information is available on the influence of the amount of intermetallics on the electrochemical properties of these alloys. In this paper, the corrosion resistance of Al/Al3Ti and Al/Al3Zr FGMs was investigated by open-circuit measurements, potentiodynamic polarization and electrochemical impedance spectroscopy. Results suggests that the corrosion resistance of the FGMs is affected by galvanic effects between the intermetallic particles and the metallic matrix. Lower centrifugal forces resulted in an improvement of the electrochemical properties.
publishDate 2011
dc.date.none.fl_str_mv 2011
2011-01-01T00:00:00Z
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 http://hdl.handle.net/1822/15758
url http://hdl.handle.net/1822/15758
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Ferreira, S.C.; Rocha, L.A.; Ariza, E.; Sequeira, P.D.; Watanabe, Yoshimi; Fernandes, J.C.S.Corrosion behaviour of Al/Al3Ti and Al/Al3Zr functionally graded materials produced by centrifugal solid-particle method: Influence of the intermetallics volume fraction, Corrosion Science, 53, 6, 2058-2065, 2011.
0010-938X
10.1016/j.corsci.2011.02.010
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 Pergamon Press
publisher.none.fl_str_mv Pergamon Press
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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