Microstructural, Electrochemical and Localized Corrosion Characterization of the AA2198-T851 Alloy

Detalhes bibliográficos
Autor(a) principal: Araujo,João Victor de Sousa
Data de Publicação: 2020
Outros Autores: Silva,Rejane Maria Pereira da, Donatus,Uyime, Machado,Caruline de Souza Carvalho, Costa,Isolda
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Materials research (São Carlos. Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392020000400222
Resumo: In the present work, the microstructure, electrochemical behavior and localized corrosion of the AA2198-T851 Al-Cu-Li alloy were studied. The microstructure was correlated with corrosion results obtained by immersion, gel visualization and scanning electrochemical microscopy (SECM) tests. Immersion and gel visualization tests showed high kinetics of corrosion attack during the first hours of immersion. SECM analyzes by means of surface generation/tip collection (SG/TC) mode detected hydrogen evolution generated during spontaneous corrosion from severe localized corrosion (SLC) sites on the metal surface. SECM results revealed sites of intense hydrogen evolution after 2 h of immersion and increased amounts of corrosion products after 4 h of immersion. Hydrogen evolution sites detected by SECM were associated with severe localized corrosion (SLC).
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spelling Microstructural, Electrochemical and Localized Corrosion Characterization of the AA2198-T851 AlloyAluminum alloylocalized corrosionhydrogen evolutionSLCSECMIn the present work, the microstructure, electrochemical behavior and localized corrosion of the AA2198-T851 Al-Cu-Li alloy were studied. The microstructure was correlated with corrosion results obtained by immersion, gel visualization and scanning electrochemical microscopy (SECM) tests. Immersion and gel visualization tests showed high kinetics of corrosion attack during the first hours of immersion. SECM analyzes by means of surface generation/tip collection (SG/TC) mode detected hydrogen evolution generated during spontaneous corrosion from severe localized corrosion (SLC) sites on the metal surface. SECM results revealed sites of intense hydrogen evolution after 2 h of immersion and increased amounts of corrosion products after 4 h of immersion. Hydrogen evolution sites detected by SECM were associated with severe localized corrosion (SLC).ABM, ABC, ABPol2020-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392020000400222Materials Research v.23 n.4 2020reponame:Materials research (São Carlos. Online)instname:Universidade Federal de São Carlos (UFSCAR)instacron:ABM ABC ABPOL10.1590/1980-5373-mr-2020-0161info:eu-repo/semantics/openAccessAraujo,João Victor de SousaSilva,Rejane Maria Pereira daDonatus,UyimeMachado,Caruline de Souza CarvalhoCosta,Isoldaeng2020-09-11T00:00:00Zoai:scielo:S1516-14392020000400222Revistahttp://www.scielo.br/mrPUBhttps://old.scielo.br/oai/scielo-oai.phpdedz@power.ufscar.br1980-53731516-1439opendoar:2020-09-11T00:00Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR)false
dc.title.none.fl_str_mv Microstructural, Electrochemical and Localized Corrosion Characterization of the AA2198-T851 Alloy
title Microstructural, Electrochemical and Localized Corrosion Characterization of the AA2198-T851 Alloy
spellingShingle Microstructural, Electrochemical and Localized Corrosion Characterization of the AA2198-T851 Alloy
Araujo,João Victor de Sousa
Aluminum alloy
localized corrosion
hydrogen evolution
SLC
SECM
title_short Microstructural, Electrochemical and Localized Corrosion Characterization of the AA2198-T851 Alloy
title_full Microstructural, Electrochemical and Localized Corrosion Characterization of the AA2198-T851 Alloy
title_fullStr Microstructural, Electrochemical and Localized Corrosion Characterization of the AA2198-T851 Alloy
title_full_unstemmed Microstructural, Electrochemical and Localized Corrosion Characterization of the AA2198-T851 Alloy
title_sort Microstructural, Electrochemical and Localized Corrosion Characterization of the AA2198-T851 Alloy
author Araujo,João Victor de Sousa
author_facet Araujo,João Victor de Sousa
Silva,Rejane Maria Pereira da
Donatus,Uyime
Machado,Caruline de Souza Carvalho
Costa,Isolda
author_role author
author2 Silva,Rejane Maria Pereira da
Donatus,Uyime
Machado,Caruline de Souza Carvalho
Costa,Isolda
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Araujo,João Victor de Sousa
Silva,Rejane Maria Pereira da
Donatus,Uyime
Machado,Caruline de Souza Carvalho
Costa,Isolda
dc.subject.por.fl_str_mv Aluminum alloy
localized corrosion
hydrogen evolution
SLC
SECM
topic Aluminum alloy
localized corrosion
hydrogen evolution
SLC
SECM
description In the present work, the microstructure, electrochemical behavior and localized corrosion of the AA2198-T851 Al-Cu-Li alloy were studied. The microstructure was correlated with corrosion results obtained by immersion, gel visualization and scanning electrochemical microscopy (SECM) tests. Immersion and gel visualization tests showed high kinetics of corrosion attack during the first hours of immersion. SECM analyzes by means of surface generation/tip collection (SG/TC) mode detected hydrogen evolution generated during spontaneous corrosion from severe localized corrosion (SLC) sites on the metal surface. SECM results revealed sites of intense hydrogen evolution after 2 h of immersion and increased amounts of corrosion products after 4 h of immersion. Hydrogen evolution sites detected by SECM were associated with severe localized corrosion (SLC).
publishDate 2020
dc.date.none.fl_str_mv 2020-01-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392020000400222
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392020000400222
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/1980-5373-mr-2020-0161
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv ABM, ABC, ABPol
publisher.none.fl_str_mv ABM, ABC, ABPol
dc.source.none.fl_str_mv Materials Research v.23 n.4 2020
reponame:Materials research (São Carlos. Online)
instname:Universidade Federal de São Carlos (UFSCAR)
instacron:ABM ABC ABPOL
instname_str Universidade Federal de São Carlos (UFSCAR)
instacron_str ABM ABC ABPOL
institution ABM ABC ABPOL
reponame_str Materials research (São Carlos. Online)
collection Materials research (São Carlos. Online)
repository.name.fl_str_mv Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR)
repository.mail.fl_str_mv dedz@power.ufscar.br
_version_ 1754212677717065728

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