Um estudo sobre a corrosão aquosa de ligas de alumínio 7xxx submetidas a diferentes tratamentos térmicos

Detalhes bibliográficos
Autor(a) principal: Pereira, Marinalda Claudete [UNESP]
Data de Publicação: 2002
Outros Autores: Dutra, Conceição Aparecida Matsumoto [UNESP], Dos Santos Rodrigues, Domingos Sávio [UNESP], Codaro, Eduardo Norberto [UNESP], Nakazato, Roberto Zenhei [UNESP]
Tipo de documento: Artigo de conferência
Idioma: por
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://hdl.handle.net/11449/67123
Resumo: This job aim has been to study the aqueous corrosion of the 7xxx heattreatable aluminium alloys, used in the aeronautical industry. The 7010, 7050 and 7475 alloys, have been supplied in the T7 condition and submitted to the annealed and aging thermal treatments of in order to study their behaviours front to corrosion in 5% NaCl pH 6,0, air-saturated and deaerated solutions. The electrochemical study has been accomplished through potential measures in open circuit, potentiodynamic polarisation curves and electrochemical impedance spectroscopy (EIS). The aged alloy resulted to be the most resistant to corrosion and annealed the less resistant ones. In spite of it they have different chemical compositions, in each mean, the alloy with the same thermal treatment has behaved in a similar way. In aerated solution, the process is controlled by oxygen diffusion and in oxygen absence for dissolution through a film. Hardness and mass loss measures, after corrosion test, have supported this research.
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spelling Um estudo sobre a corrosão aquosa de ligas de alumínio 7xxx submetidas a diferentes tratamentos térmicosAqueous corrosion study of 7xxx aluminium alloys submitted to different heat treatments7XXX seriesAeronautical materialsCorrosionAqueous corrosionCompositionElectrochemistryHardnessHeat treatmentPolarizationSolutionsSpectroscopic analysisAluminum alloysThis job aim has been to study the aqueous corrosion of the 7xxx heattreatable aluminium alloys, used in the aeronautical industry. The 7010, 7050 and 7475 alloys, have been supplied in the T7 condition and submitted to the annealed and aging thermal treatments of in order to study their behaviours front to corrosion in 5% NaCl pH 6,0, air-saturated and deaerated solutions. The electrochemical study has been accomplished through potential measures in open circuit, potentiodynamic polarisation curves and electrochemical impedance spectroscopy (EIS). The aged alloy resulted to be the most resistant to corrosion and annealed the less resistant ones. In spite of it they have different chemical compositions, in each mean, the alloy with the same thermal treatment has behaved in a similar way. In aerated solution, the process is controlled by oxygen diffusion and in oxygen absence for dissolution through a film. Hardness and mass loss measures, after corrosion test, have supported this research.Grupo de Eletroquim./Corrosao UNESP Campus de Guaratinguetá, SPGrupo de Eletroquim./Corrosao UNESP Campus de Guaratinguetá, SPUniversidade Estadual Paulista (Unesp)Pereira, Marinalda Claudete [UNESP]Dutra, Conceição Aparecida Matsumoto [UNESP]Dos Santos Rodrigues, Domingos Sávio [UNESP]Codaro, Eduardo Norberto [UNESP]Nakazato, Roberto Zenhei [UNESP]2014-05-27T11:20:34Z2014-05-27T11:20:34Z2002-12-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObject510-519Anais - 10th Semiario de Metals nao Ferrosos, p. 510-519.http://hdl.handle.net/11449/671232-s2.0-18425351749386730770147178753909726048937587991910784514670000-0002-1648-22810000-0001-7897-1905Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPporAnais - 10th Semiario de Metals nao Ferrososinfo:eu-repo/semantics/openAccess2024-07-01T20:52:57Zoai:repositorio.unesp.br:11449/67123Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T20:02:12.496357Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Um estudo sobre a corrosão aquosa de ligas de alumínio 7xxx submetidas a diferentes tratamentos térmicos
Aqueous corrosion study of 7xxx aluminium alloys submitted to different heat treatments
title Um estudo sobre a corrosão aquosa de ligas de alumínio 7xxx submetidas a diferentes tratamentos térmicos
spellingShingle Um estudo sobre a corrosão aquosa de ligas de alumínio 7xxx submetidas a diferentes tratamentos térmicos
Pereira, Marinalda Claudete [UNESP]
7XXX series
Aeronautical materials
Corrosion
Aqueous corrosion
Composition
Electrochemistry
Hardness
Heat treatment
Polarization
Solutions
Spectroscopic analysis
Aluminum alloys
title_short Um estudo sobre a corrosão aquosa de ligas de alumínio 7xxx submetidas a diferentes tratamentos térmicos
title_full Um estudo sobre a corrosão aquosa de ligas de alumínio 7xxx submetidas a diferentes tratamentos térmicos
title_fullStr Um estudo sobre a corrosão aquosa de ligas de alumínio 7xxx submetidas a diferentes tratamentos térmicos
title_full_unstemmed Um estudo sobre a corrosão aquosa de ligas de alumínio 7xxx submetidas a diferentes tratamentos térmicos
title_sort Um estudo sobre a corrosão aquosa de ligas de alumínio 7xxx submetidas a diferentes tratamentos térmicos
author Pereira, Marinalda Claudete [UNESP]
author_facet Pereira, Marinalda Claudete [UNESP]
Dutra, Conceição Aparecida Matsumoto [UNESP]
Dos Santos Rodrigues, Domingos Sávio [UNESP]
Codaro, Eduardo Norberto [UNESP]
Nakazato, Roberto Zenhei [UNESP]
author_role author
author2 Dutra, Conceição Aparecida Matsumoto [UNESP]
Dos Santos Rodrigues, Domingos Sávio [UNESP]
Codaro, Eduardo Norberto [UNESP]
Nakazato, Roberto Zenhei [UNESP]
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (Unesp)
dc.contributor.author.fl_str_mv Pereira, Marinalda Claudete [UNESP]
Dutra, Conceição Aparecida Matsumoto [UNESP]
Dos Santos Rodrigues, Domingos Sávio [UNESP]
Codaro, Eduardo Norberto [UNESP]
Nakazato, Roberto Zenhei [UNESP]
dc.subject.por.fl_str_mv 7XXX series
Aeronautical materials
Corrosion
Aqueous corrosion
Composition
Electrochemistry
Hardness
Heat treatment
Polarization
Solutions
Spectroscopic analysis
Aluminum alloys
topic 7XXX series
Aeronautical materials
Corrosion
Aqueous corrosion
Composition
Electrochemistry
Hardness
Heat treatment
Polarization
Solutions
Spectroscopic analysis
Aluminum alloys
description This job aim has been to study the aqueous corrosion of the 7xxx heattreatable aluminium alloys, used in the aeronautical industry. The 7010, 7050 and 7475 alloys, have been supplied in the T7 condition and submitted to the annealed and aging thermal treatments of in order to study their behaviours front to corrosion in 5% NaCl pH 6,0, air-saturated and deaerated solutions. The electrochemical study has been accomplished through potential measures in open circuit, potentiodynamic polarisation curves and electrochemical impedance spectroscopy (EIS). The aged alloy resulted to be the most resistant to corrosion and annealed the less resistant ones. In spite of it they have different chemical compositions, in each mean, the alloy with the same thermal treatment has behaved in a similar way. In aerated solution, the process is controlled by oxygen diffusion and in oxygen absence for dissolution through a film. Hardness and mass loss measures, after corrosion test, have supported this research.
publishDate 2002
dc.date.none.fl_str_mv 2002-12-01
2014-05-27T11:20:34Z
2014-05-27T11:20:34Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/conferenceObject
format conferenceObject
status_str publishedVersion
dc.identifier.uri.fl_str_mv Anais - 10th Semiario de Metals nao Ferrosos, p. 510-519.
http://hdl.handle.net/11449/67123
2-s2.0-1842535174
9386730770147178
7539097260489375
8799191078451467
0000-0002-1648-2281
0000-0001-7897-1905
identifier_str_mv Anais - 10th Semiario de Metals nao Ferrosos, p. 510-519.
2-s2.0-1842535174
9386730770147178
7539097260489375
8799191078451467
0000-0002-1648-2281
0000-0001-7897-1905
url http://hdl.handle.net/11449/67123
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv Anais - 10th Semiario de Metals nao Ferrosos
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 510-519
dc.source.none.fl_str_mv Scopus
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
repository.mail.fl_str_mv
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