CHARACTERIZATION OF ALLOY TERNARY ZN -NI- CO ELECTRODEPOSITED BETWEEN ACID AND ITS CORROSION PROPERTY

• Autores: Reátegui R., W., Solís V., J. L.
• Formato: artículo
• Fecha de Publicación: 2011
• Institución: Universidad Nacional Mayor de San Marcos
• Repositorio: Revistas - Universidad Nacional Mayor de San Marcos
• Lenguaje: español
• OAI Identifier: oai:ojs.csi.unmsm:article/4611
• Enlace del recurso: https://revistasinvestigacion.unmsm.edu.pe/index.php/quim/article/view/4611
• Nivel de acceso: acceso abierto
• Materia: Electrodeposition ternary Zn -Ni- Co; corrosion resistance.; Electrodeposición ternaria Zn-Ni-Co; resistencia a la corrosión.

The electrodeposition of the ternary alloy coating of Zn -Ni- Co using a solution containing zinc chloride ( ZnCl2 ) , cobalt chloride ( CoCl2.6H2O ) and nickel chloride ( NiCl2.6H2O ) . The crystalline phase , surface morphology and hardness of the alloys obtained were characterized by X-ray diffraction (XRD ) , atomic force microscopy (AFM) and microhardness , respectively . The chemical composition of the coating was measured by atomic absorption spectroscopy . The corrosion rate was measured with a potentiostat through the technique of linear polarization resistance . We found that the ternary alloys obtained have better corrosion resistance and higher hardness than the Zn coating . Under the conditions examined , the electrodeposition of ternary coating is the anomalous type . The crystalline phase of the alloy obtained on ordinary steel and copper is Zn11Ni2 phase .