Resumo Compostos orgânicos adicionados em soluções eletrolíticas podem influenciar na eficiência do eletrodepósito, no aspecto visual do material, nas fases formadas, na topografia e na dureza do revestimento. Para analisar esses parâmetros, um aço baixo carbono foi revestido com ligas Zn-Ni, a partir de três banhos distintos contendo os seguintes compostos orgânicos, além de outros reagentes: sacarina, trietilamina e ácido p-toluenossulfônico, a fim de compará-los entre si e com o banho sem composto orgânico. Para isso, utilizou-se microscópio eletrônico de varredura, espectroscopia de dispersão de raios-x e microscópio óptico confocal para análise da superfície, além de ultra-microdurômetro para determinação da dureza dinâmica do revestimento. Os resultados mostraram que os compostos orgânicos alteraram as características do depósito. Conclui-se que ocorreram alterações na eficiência catódica, na porcentagem dos elementos de Zn e Ni no revestimento, nas características de rugosidade, porosidade e dureza. Palavras-chave: Eletrodeposição; Ligas Zn-Ni; Componentes orgânicos. EFFECT OF ORGANIC COMPOUNDS IN THE ELECTRODEPOSITION OF Zn-Ni ALLOYS ON STEEL Abstract Organic compounds added in electrolyte solutions can influence the deposit efficiency, the visual aspect of the material, the phase formation, topography and the coating hardness. Order to examine these parameters, low carbon steel was coated with Zn-Ni alloy from three separate baths containing the following organic compounds, and other reagents: saccharin, triethylamine and p-toluenesulfonic acid in order to compare them with each other and with the bath without organic compound. For this, was used a scanning electron microscope, energy dispersive x-ray and optical confocal microscope for surface analysis, ultra-microhardness tester to determine the dynamic hardness of the coating. The results showed that the organic compounds have altered characteristics of the deposit. It observed changes in the cathodic efficiency, in the percentage of the elements Zn and Ni in the coating, in the roughness, porosity and hardness characteristics.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
customersupport@researchsolutions.com
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.