Um estudo sobre a corrosão aquosa de ligas de alumínio 7xxx submetidas a diferentes tratamentos térmicos
Autor(a) principal: | |
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Data de Publicação: | 2002 |
Outros Autores: | , , , |
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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Repositório Institucional da UNESP |
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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 |
|
_version_ |
1808129153492320256 |