CHARACTERIZATION OF ALLOY TERNARY ZN -NI- CO ELECTRODEPOSITED BETWEEN ACID AND ITS CORROSION PROPERTY
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 diffra...
| Autores: | , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2011 |
| País: | Perú |
| Institución: | Universidad Nacional Mayor de San Marcos |
| Repositorio: | Revistas - Universidad Nacional Mayor de San Marcos |
| Idioma: | español |
| OAI Identifier: | oai:revistasinvestigacion.unmsm.edu.pe:article/4611 |
| Acceso en línea: | https://revistasinvestigacion.unmsm.edu.pe/index.php/quim/article/view/4611 |
| Access Level: | acceso abierto |
| Palabra clave: | Electrodeposition ternary Zn -Ni- Co corrosion resistance. Electrodeposición ternaria Zn-Ni-Co resistencia a la corrosión. |
| Sumario: | 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 . |
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