Influence of current density and mechanical agitation on the electrodeposition process of Zn-Ni alloys
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , , , , , , |
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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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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1797052656779264000 |