Electrochemical and Metallurgical Behavior of Lead-Magnesium Casting Alloys as Grids for Lead-Acid Batteries
Autor(a) principal: | |
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Data de Publicação: | 2021 |
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=S0872-19042021000400253 |
Resumo: | Abstract In order to evaluate the influence of magnesium on the corrosion resistance of lead anodes in H2SO4 4 M, as well as on the microcrystalline morphology of lead, different electrochemical and metallurgical studies were made, such potentiodynamique polarization, electrochemical impedance spectroscopy, microhardness evolution, X-ray fluorescence spectroscopy and optical microscopy. The obtained results have shown that the addition of magnesium up to 1.5% in weight leads to a significant decrease in the corrosion current density (Icorr) and therefore, it increases the corrosion inhibition efficiency to 83% and it reduces the famous sulfation phenomena, by facilitating the transformation of PbSO4 and PbO to PbO2. It also makes the micro-structure of Pb much stronger, which makes the Pb anodes more resistant to mechanical shocks within the battery. We have also studied the effect of temperature on the corrosion of the new casting alloys. We found that an increase in temperature led to a decrease in its effect on the corrosion of alloys, compared with that of pure lead. Therefore, the new improved battery is more resistant, durable and more environment friendly. |
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Electrochemical and Metallurgical Behavior of Lead-Magnesium Casting Alloys as Grids for Lead-Acid BatteriesbatterycorrosionPb-Mgelectro-chemistryAbstract In order to evaluate the influence of magnesium on the corrosion resistance of lead anodes in H2SO4 4 M, as well as on the microcrystalline morphology of lead, different electrochemical and metallurgical studies were made, such potentiodynamique polarization, electrochemical impedance spectroscopy, microhardness evolution, X-ray fluorescence spectroscopy and optical microscopy. The obtained results have shown that the addition of magnesium up to 1.5% in weight leads to a significant decrease in the corrosion current density (Icorr) and therefore, it increases the corrosion inhibition efficiency to 83% and it reduces the famous sulfation phenomena, by facilitating the transformation of PbSO4 and PbO to PbO2. It also makes the micro-structure of Pb much stronger, which makes the Pb anodes more resistant to mechanical shocks within the battery. We have also studied the effect of temperature on the corrosion of the new casting alloys. We found that an increase in temperature led to a decrease in its effect on the corrosion of alloys, compared with that of pure lead. Therefore, the new improved battery is more resistant, durable and more environment friendly.Sociedade Portuguesa de Electroquímica2021-08-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articletext/htmlhttp://scielo.pt/scielo.php?script=sci_arttext&pid=S0872-19042021000400253Portugaliae Electrochimica Acta v.39 n.4 2021reponame: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=S0872-19042021000400253Khatbi,SalmaGouale,YoussefLamiri,AbdeslamEssahli,Mohamedinfo:eu-repo/semantics/openAccess2024-02-06T17:07:35Zoai:scielo:S0872-19042021000400253Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T02:20:27.814232Repositório 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 |
Electrochemical and Metallurgical Behavior of Lead-Magnesium Casting Alloys as Grids for Lead-Acid Batteries |
title |
Electrochemical and Metallurgical Behavior of Lead-Magnesium Casting Alloys as Grids for Lead-Acid Batteries |
spellingShingle |
Electrochemical and Metallurgical Behavior of Lead-Magnesium Casting Alloys as Grids for Lead-Acid Batteries Khatbi,Salma battery corrosion Pb-Mg electro-chemistry |
title_short |
Electrochemical and Metallurgical Behavior of Lead-Magnesium Casting Alloys as Grids for Lead-Acid Batteries |
title_full |
Electrochemical and Metallurgical Behavior of Lead-Magnesium Casting Alloys as Grids for Lead-Acid Batteries |
title_fullStr |
Electrochemical and Metallurgical Behavior of Lead-Magnesium Casting Alloys as Grids for Lead-Acid Batteries |
title_full_unstemmed |
Electrochemical and Metallurgical Behavior of Lead-Magnesium Casting Alloys as Grids for Lead-Acid Batteries |
title_sort |
Electrochemical and Metallurgical Behavior of Lead-Magnesium Casting Alloys as Grids for Lead-Acid Batteries |
author |
Khatbi,Salma |
author_facet |
Khatbi,Salma Gouale,Youssef Lamiri,Abdeslam Essahli,Mohamed |
author_role |
author |
author2 |
Gouale,Youssef Lamiri,Abdeslam Essahli,Mohamed |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Khatbi,Salma Gouale,Youssef Lamiri,Abdeslam Essahli,Mohamed |
dc.subject.por.fl_str_mv |
battery corrosion Pb-Mg electro-chemistry |
topic |
battery corrosion Pb-Mg electro-chemistry |
description |
Abstract In order to evaluate the influence of magnesium on the corrosion resistance of lead anodes in H2SO4 4 M, as well as on the microcrystalline morphology of lead, different electrochemical and metallurgical studies were made, such potentiodynamique polarization, electrochemical impedance spectroscopy, microhardness evolution, X-ray fluorescence spectroscopy and optical microscopy. The obtained results have shown that the addition of magnesium up to 1.5% in weight leads to a significant decrease in the corrosion current density (Icorr) and therefore, it increases the corrosion inhibition efficiency to 83% and it reduces the famous sulfation phenomena, by facilitating the transformation of PbSO4 and PbO to PbO2. It also makes the micro-structure of Pb much stronger, which makes the Pb anodes more resistant to mechanical shocks within the battery. We have also studied the effect of temperature on the corrosion of the new casting alloys. We found that an increase in temperature led to a decrease in its effect on the corrosion of alloys, compared with that of pure lead. Therefore, the new improved battery is more resistant, durable and more environment friendly. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-08-01 |
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=S0872-19042021000400253 |
url |
http://scielo.pt/scielo.php?script=sci_arttext&pid=S0872-19042021000400253 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
http://scielo.pt/scielo.php?script=sci_arttext&pid=S0872-19042021000400253 |
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.39 n.4 2021 reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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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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1799137292025069568 |