Multilayers coatings for corrosion resistance enhancement of chromium electrodeposits



Título del documento: Multilayers coatings for corrosion resistance enhancement of chromium electrodeposits
Revista: Superficies y vacío
Base de datos: PERIÓDICA
Número de sistema: 000355825
ISSN: 1665-3521
Autores: 1
2
2
2
2
2
Instituciones: 1Ecole Nationale Superieure des Mines de Saint Etienne, Saint-Etienne. Francia
2Centro de Investigación y Desarrollo Tecnológico en Electroquímica S.C., Pedro Escobedo, Querétaro. México
Año:
Periodo: Jun
Volumen: 25
Número: 2
País: México
Idioma: Inglés
Tipo de documento: Artículo
Enfoque: Experimental, aplicado
Resumen en inglés Chromium multilayers coatings were obtained from three different bath solutions, they were prepared using a square wave current function. Two temperatures were studied, 35°C and 55°C varying current density 10 and 70 Adm-2. The combinations of different microstructures were studied: columnar and equiaxial. The chromium multilayers were characterized by Scanning Electron Microscopy (SEM), X-ray Diffraction (XRD), and Salt Spray (fog) Test. In general the coatings are microcracked, have small grain size and show an unexpected very good corrosion resistance, in some cases coatings do not form red rust even after 700 h of salt spray test
Disciplinas: Ingeniería
Palabras clave: Ingeniería de materiales,
Recubrimientos de multicapa,
Cromo,
Resistencia a la corrosión
Keyword: Engineering,
Materials engineering,
Multilayer coatings,
Chromium,
Corrosion resistance
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