Effects of Addition of Alkaline Earth Metal-Beryllium on the Dissolution Behaviour of Aluminium-Zinc Alloy
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://scielo.pt/scielo.php?script=sci_arttext&pid=S0872-19042017000200003 |
Resumo: | This work has investigated the effect of addition of the Be alkaline earth metal on the dissolution behaviour of the Al-Zn alloy anode. Corrosion experiments were mounted to determine the optimal effect of an alkaline earth metal on the efficiencies of the aluminium alloy anodes. The corroded and unexposed sample surfaces were subject to microstructural characterization by using scanning electron microscopy and X-ray diffraction techniques. Al-Zn alloy doped with 1-5% by weight of beryllium was prepared to determine the effect on the anode efficiency in chloride environment. The different microstructure of the evolved Al-Zn alloy was correlated with the anode efficiencies. The obtained results showed that the anode efficiency of the Al-Zn alloy increased with the beryllium incorporation concentration. Al-Zn-Be-3% exhibits the better performance in terms of anode efficiency. The microstructure of the Al-Zn-Be alloy revealed increased distribution of beryllium globules and a breakdown of passive alumina film network on the anode surfaces, thus improving the anode efficiency. |
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Effects of Addition of Alkaline Earth Metal-Beryllium on the Dissolution Behaviour of Aluminium-Zinc Alloycorrosionsacrificial anodealuminium alloyalkaline earth metalefficiencymicrostructuresThis work has investigated the effect of addition of the Be alkaline earth metal on the dissolution behaviour of the Al-Zn alloy anode. Corrosion experiments were mounted to determine the optimal effect of an alkaline earth metal on the efficiencies of the aluminium alloy anodes. The corroded and unexposed sample surfaces were subject to microstructural characterization by using scanning electron microscopy and X-ray diffraction techniques. Al-Zn alloy doped with 1-5% by weight of beryllium was prepared to determine the effect on the anode efficiency in chloride environment. The different microstructure of the evolved Al-Zn alloy was correlated with the anode efficiencies. The obtained results showed that the anode efficiency of the Al-Zn alloy increased with the beryllium incorporation concentration. Al-Zn-Be-3% exhibits the better performance in terms of anode efficiency. The microstructure of the Al-Zn-Be alloy revealed increased distribution of beryllium globules and a breakdown of passive alumina film network on the anode surfaces, thus improving the anode efficiency.Sociedade Portuguesa de Electroquímica2017-03-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articletext/htmlhttp://scielo.pt/scielo.php?script=sci_arttext&pid=S0872-19042017000200003Portugaliae Electrochimica Acta v.35 n.2 2017reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAPenghttp://scielo.pt/scielo.php?script=sci_arttext&pid=S0872-19042017000200003Vijayarani,K.Devan,M. VishnuNatarajan,R.info:eu-repo/semantics/openAccess2024-02-06T17:07:24Zoai:scielo:S0872-19042017000200003Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T02:20:19.544947Repositório 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 |
Effects of Addition of Alkaline Earth Metal-Beryllium on the Dissolution Behaviour of Aluminium-Zinc Alloy |
title |
Effects of Addition of Alkaline Earth Metal-Beryllium on the Dissolution Behaviour of Aluminium-Zinc Alloy |
spellingShingle |
Effects of Addition of Alkaline Earth Metal-Beryllium on the Dissolution Behaviour of Aluminium-Zinc Alloy Vijayarani,K. corrosion sacrificial anode aluminium alloy alkaline earth metal efficiency microstructures |
title_short |
Effects of Addition of Alkaline Earth Metal-Beryllium on the Dissolution Behaviour of Aluminium-Zinc Alloy |
title_full |
Effects of Addition of Alkaline Earth Metal-Beryllium on the Dissolution Behaviour of Aluminium-Zinc Alloy |
title_fullStr |
Effects of Addition of Alkaline Earth Metal-Beryllium on the Dissolution Behaviour of Aluminium-Zinc Alloy |
title_full_unstemmed |
Effects of Addition of Alkaline Earth Metal-Beryllium on the Dissolution Behaviour of Aluminium-Zinc Alloy |
title_sort |
Effects of Addition of Alkaline Earth Metal-Beryllium on the Dissolution Behaviour of Aluminium-Zinc Alloy |
author |
Vijayarani,K. |
author_facet |
Vijayarani,K. Devan,M. Vishnu Natarajan,R. |
author_role |
author |
author2 |
Devan,M. Vishnu Natarajan,R. |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Vijayarani,K. Devan,M. Vishnu Natarajan,R. |
dc.subject.por.fl_str_mv |
corrosion sacrificial anode aluminium alloy alkaline earth metal efficiency microstructures |
topic |
corrosion sacrificial anode aluminium alloy alkaline earth metal efficiency microstructures |
description |
This work has investigated the effect of addition of the Be alkaline earth metal on the dissolution behaviour of the Al-Zn alloy anode. Corrosion experiments were mounted to determine the optimal effect of an alkaline earth metal on the efficiencies of the aluminium alloy anodes. The corroded and unexposed sample surfaces were subject to microstructural characterization by using scanning electron microscopy and X-ray diffraction techniques. Al-Zn alloy doped with 1-5% by weight of beryllium was prepared to determine the effect on the anode efficiency in chloride environment. The different microstructure of the evolved Al-Zn alloy was correlated with the anode efficiencies. The obtained results showed that the anode efficiency of the Al-Zn alloy increased with the beryllium incorporation concentration. Al-Zn-Be-3% exhibits the better performance in terms of anode efficiency. The microstructure of the Al-Zn-Be alloy revealed increased distribution of beryllium globules and a breakdown of passive alumina film network on the anode surfaces, thus improving the anode efficiency. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-03-01 |
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://scielo.pt/scielo.php?script=sci_arttext&pid=S0872-19042017000200003 |
url |
http://scielo.pt/scielo.php?script=sci_arttext&pid=S0872-19042017000200003 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
http://scielo.pt/scielo.php?script=sci_arttext&pid=S0872-19042017000200003 |
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 |
Sociedade Portuguesa de Electroquímica |
publisher.none.fl_str_mv |
Sociedade Portuguesa de Electroquímica |
dc.source.none.fl_str_mv |
Portugaliae Electrochimica Acta v.35 n.2 2017 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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1799137291514413056 |