Influence of current density and mechanical agitation on the electrodeposition process of Zn-Ni alloys

Detalhes bibliográficos
Autor(a) principal: Costa, Josiane Dantas
Data de Publicação: 2020
Outros Autores: Oliveira, José Anderson Machado, Oliveira, Alison Silva, Raulino, Anamélia de Medeiros Dantas, Raulino, José Leonardo Costa, Almeida, Arthur Filgueira de, Campos, Ana Regina Nascimento, Santana, Renato Alexandre Costa de
Tipo de documento: Artigo
Idioma: por
Título da fonte: Research, Society and Development
Texto Completo: https://rsdjournal.org/index.php/rsd/article/view/7329
Resumo: The effects of current density and mechanical agitation of the bath in the electrodeposition process to obtain the Zn-Ni alloy were evaluated. An electrolytic bath was used consisted of nickel sulfate, zinc sulfate, sodium sulfate, boric acid and sodium citrate at pH 7.0. The current density was evaluated in the range of 10-50 mA / cm², and, for mechanical agitation, it was evaluated in the range of 30-70 rpm. As optimization tool, a complete 2² factorial design was used with three central elements associated with the Response Surface Methodology (RSM). It was observed that the increase in current density and in mechanical agitation caused an increase in the atomic percentage of nickel in the coatings. The percentage of zinc increased with decreasing current density. The optimum nickel value obtained was 39 at.%. The electrodeposition was anomalous. The microhardness increased with the increase in the percentage of nickel and with the decrease in the percentage of Zn in the coating. The coatings showed nodules on the surface with different sizes and shapes.
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spelling Influence of current density and mechanical agitation on the electrodeposition process of Zn-Ni alloysInfluencia de la densidad de corriente y la agitación mecánica en el proceso de electrodeposición de aleaciones Zn-NiInfluência da densidade de corrente e da agitação mecânica no processo de eletrodeposição de ligas Zn-NiChemical compositionElectrodepositionZn-Ni alloyMicrohardnessFactorial design.Composición químicaElectrodeposiciónAleación de Zn-NiMicrodurezaDiseño factorial.Composição químicaEletrodeposiçãoLiga Zn-NiMicrodurezaPlanejamento fatorial.The effects of current density and mechanical agitation of the bath in the electrodeposition process to obtain the Zn-Ni alloy were evaluated. An electrolytic bath was used consisted of nickel sulfate, zinc sulfate, sodium sulfate, boric acid and sodium citrate at pH 7.0. The current density was evaluated in the range of 10-50 mA / cm², and, for mechanical agitation, it was evaluated in the range of 30-70 rpm. As optimization tool, a complete 2² factorial design was used with three central elements associated with the Response Surface Methodology (RSM). It was observed that the increase in current density and in mechanical agitation caused an increase in the atomic percentage of nickel in the coatings. The percentage of zinc increased with decreasing current density. The optimum nickel value obtained was 39 at.%. The electrodeposition was anomalous. The microhardness increased with the increase in the percentage of nickel and with the decrease in the percentage of Zn in the coating. The coatings showed nodules on the surface with different sizes and shapes.Se evaluaron los efectos de la densidad de corriente y la agitación mecánica del baño en el proceso de electrodeposición para obtener la aleación de Zn-Ni. Se usó un baño electrolítico que consistía en sulfato de níquel, sulfato de zinc, sulfato de sodio, ácido bórico y citrato de sodio a pH 7,0. La densidad de corriente se evaluó en el rango de 10-50 mA / cm² y para la agitación mecánica se evaluó en el rango de 30-70 rpm. Como herramienta de optimización, se utilizó un diseño factorial completo de 2² con tres elementos centrales asociados con la metodología de superficie de respuesta. Se observó que el aumento en la densidad de corriente y la agitación mecánica causaron un aumento en el porcentaje atómico de níquel en los recubrimientos. El porcentaje de zinc aumentó al disminuir la densidad de corriente. El valor óptimo de níquel obtenido fue del 39%. La electrodeposición fue anómala. La microdureza aumenta con el aumento en el porcentaje de níquel y disminuye en el porcentaje de Zn en el recubrimiento. Los recubrimientos mostraron nódulos en la superficie con diferentes tamaños y formas.Foram avaliados os efeitos da densidade de corrente e agitação mecânica do banho no processo de eletrodeposição para obtenção da liga Zn-Ni. Foi utilizado um banho eletrolítico constituído de sulfato de níquel, sulfato de zinco, sulfato de sódio, ácido bórico e citrato de sódio em pH 7,0. A densidade de corrente foi avaliada na faixa de 10-50 mA/cm² e para a agitação mecânica foi avaliada na faixa de 30-70 rpm. Como ferramenta de otimização, foi utilizado um planejamento fatorial completo 2² com três elementos centrais associado à Metodologia de Superfície de Resposta (MSR). Foi observado que o aumento da densidade de corrente e da agitação mecânica provocou o aumento do percentual atômico de níquel nos revestimentos. O percentual de zinco aumentou com a diminuição da densidade de corrente. O ponto ótimo de níquel obtido foi de 39 at.%. A eletrodeposição foi do tipo anômala. A microdureza aumentou com o aumento do percentual de níquel e com a diminuição do percentual de Zn no revestimento. Os revestimentos apresentaram nódulos na superfície com diferentes tamanhos e formas.Research, Society and Development2020-08-21info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://rsdjournal.org/index.php/rsd/article/view/732910.33448/rsd-v9i9.7329Research, Society and Development; Vol. 9 No. 9; e355997329Research, Society and Development; Vol. 9 Núm. 9; e355997329Research, Society and Development; v. 9 n. 9; e3559973292525-3409reponame:Research, Society and Developmentinstname:Universidade Federal de Itajubá (UNIFEI)instacron:UNIFEIporhttps://rsdjournal.org/index.php/rsd/article/view/7329/6513Copyright (c) 2020 Josiane Dantas Costa; José Anderson Machado Oliveira; Alison Silva Oliveira; Anamélia de Medeiros Dantas Raulino; José Leonardo Costa Raulino; Arthur Filgueira de Almeida; Ana Regina Nascimento Campos; Renato Alexandre Costa de Santanahttp://creativecommons.org/licenses/by/4.0info:eu-repo/semantics/openAccessCosta, Josiane DantasOliveira, José Anderson Machado Oliveira, Alison Silva Raulino, Anamélia de Medeiros Dantas Raulino, José Leonardo Costa Almeida, Arthur Filgueira de Campos, Ana Regina Nascimento Santana, Renato Alexandre Costa de 2020-09-18T01:42:11Zoai:ojs.pkp.sfu.ca:article/7329Revistahttps://rsdjournal.org/index.php/rsd/indexPUBhttps://rsdjournal.org/index.php/rsd/oairsd.articles@gmail.com2525-34092525-3409opendoar:2024-01-17T09:30:05.512218Research, Society and Development - Universidade Federal de Itajubá (UNIFEI)false
dc.title.none.fl_str_mv Influence of current density and mechanical agitation on the electrodeposition process of Zn-Ni alloys
Influencia de la densidad de corriente y la agitación mecánica en el proceso de electrodeposición de aleaciones Zn-Ni
Influência da densidade de corrente e da agitação mecânica no processo de eletrodeposição de ligas Zn-Ni
title Influence of current density and mechanical agitation on the electrodeposition process of Zn-Ni alloys
spellingShingle Influence of current density and mechanical agitation on the electrodeposition process of Zn-Ni alloys
Costa, Josiane Dantas
Chemical composition
Electrodeposition
Zn-Ni alloy
Microhardness
Factorial design.
Composición química
Electrodeposición
Aleación de Zn-Ni
Microdureza
Diseño factorial.
Composição química
Eletrodeposição
Liga Zn-Ni
Microdureza
Planejamento fatorial.
title_short Influence of current density and mechanical agitation on the electrodeposition process of Zn-Ni alloys
title_full Influence of current density and mechanical agitation on the electrodeposition process of Zn-Ni alloys
title_fullStr Influence of current density and mechanical agitation on the electrodeposition process of Zn-Ni alloys
title_full_unstemmed Influence of current density and mechanical agitation on the electrodeposition process of Zn-Ni alloys
title_sort Influence of current density and mechanical agitation on the electrodeposition process of Zn-Ni alloys
author Costa, Josiane Dantas
author_facet Costa, Josiane Dantas
Oliveira, José Anderson Machado
Oliveira, Alison Silva
Raulino, Anamélia de Medeiros Dantas
Raulino, José Leonardo Costa
Almeida, Arthur Filgueira de
Campos, Ana Regina Nascimento
Santana, Renato Alexandre Costa de
author_role author
author2 Oliveira, José Anderson Machado
Oliveira, Alison Silva
Raulino, Anamélia de Medeiros Dantas
Raulino, José Leonardo Costa
Almeida, Arthur Filgueira de
Campos, Ana Regina Nascimento
Santana, Renato Alexandre Costa de
author2_role author
author
author
author
author
author
author
dc.contributor.author.fl_str_mv Costa, Josiane Dantas
Oliveira, José Anderson Machado
Oliveira, Alison Silva
Raulino, Anamélia de Medeiros Dantas
Raulino, José Leonardo Costa
Almeida, Arthur Filgueira de
Campos, Ana Regina Nascimento
Santana, Renato Alexandre Costa de
dc.subject.por.fl_str_mv Chemical composition
Electrodeposition
Zn-Ni alloy
Microhardness
Factorial design.
Composición química
Electrodeposición
Aleación de Zn-Ni
Microdureza
Diseño factorial.
Composição química
Eletrodeposição
Liga Zn-Ni
Microdureza
Planejamento fatorial.
topic Chemical composition
Electrodeposition
Zn-Ni alloy
Microhardness
Factorial design.
Composición química
Electrodeposición
Aleación de Zn-Ni
Microdureza
Diseño factorial.
Composição química
Eletrodeposição
Liga Zn-Ni
Microdureza
Planejamento fatorial.
description The effects of current density and mechanical agitation of the bath in the electrodeposition process to obtain the Zn-Ni alloy were evaluated. An electrolytic bath was used consisted of nickel sulfate, zinc sulfate, sodium sulfate, boric acid and sodium citrate at pH 7.0. The current density was evaluated in the range of 10-50 mA / cm², and, for mechanical agitation, it was evaluated in the range of 30-70 rpm. As optimization tool, a complete 2² factorial design was used with three central elements associated with the Response Surface Methodology (RSM). It was observed that the increase in current density and in mechanical agitation caused an increase in the atomic percentage of nickel in the coatings. The percentage of zinc increased with decreasing current density. The optimum nickel value obtained was 39 at.%. The electrodeposition was anomalous. The microhardness increased with the increase in the percentage of nickel and with the decrease in the percentage of Zn in the coating. The coatings showed nodules on the surface with different sizes and shapes.
publishDate 2020
dc.date.none.fl_str_mv 2020-08-21
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://rsdjournal.org/index.php/rsd/article/view/7329
10.33448/rsd-v9i9.7329
url https://rsdjournal.org/index.php/rsd/article/view/7329
identifier_str_mv 10.33448/rsd-v9i9.7329
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://rsdjournal.org/index.php/rsd/article/view/7329/6513
dc.rights.driver.fl_str_mv http://creativecommons.org/licenses/by/4.0
info:eu-repo/semantics/openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by/4.0
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Research, Society and Development
publisher.none.fl_str_mv Research, Society and Development
dc.source.none.fl_str_mv Research, Society and Development; Vol. 9 No. 9; e355997329
Research, Society and Development; Vol. 9 Núm. 9; e355997329
Research, Society and Development; v. 9 n. 9; e355997329
2525-3409
reponame:Research, Society and Development
instname:Universidade Federal de Itajubá (UNIFEI)
instacron:UNIFEI
instname_str Universidade Federal de Itajubá (UNIFEI)
instacron_str UNIFEI
institution UNIFEI
reponame_str Research, Society and Development
collection Research, Society and Development
repository.name.fl_str_mv Research, Society and Development - Universidade Federal de Itajubá (UNIFEI)
repository.mail.fl_str_mv rsd.articles@gmail.com
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