Influencia de la densidad de corriente y la agitación mecánica en el proceso de electrodeposición de aleaciones Zn-Ni

Autores/as

DOI:

https://doi.org/10.33448/rsd-v9i9.7329

Palabras clave:

Composición química; Electrodeposición; Aleación de Zn-Ni; Microdureza; Diseño factorial.

Resumen

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.

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Publicado

21/08/2020

Cómo citar

COSTA, J. D.; OLIVEIRA, J. A. M. .; OLIVEIRA, A. S. .; RAULINO, A. de M. D. .; RAULINO, J. L. C. .; ALMEIDA, A. F. de .; CAMPOS, A. R. N. .; SANTANA, R. A. C. de . Influencia de la densidad de corriente y la agitación mecánica en el proceso de electrodeposición de aleaciones Zn-Ni. Research, Society and Development, [S. l.], v. 9, n. 9, p. e355997329, 2020. DOI: 10.33448/rsd-v9i9.7329. Disponível em: https://rsdjournal.org/index.php/rsd/article/view/7329. Acesso em: 3 jul. 2024.

Número

Sección

Ingenierías