Effect of NH 4HF 2 on deposition of alkaline electroless Ni-P coatings as a chromium-free pre-treatment for magnesium

A. A. Zuleta, E. Correa, M. Sepúlveda, L. Guerra, J. G. Castaño, F. Echeverría, P. Skeldon, G. E. Thompson

Resultado de la investigación: Contribución a una revistaArtículorevisión exhaustiva

29 Citas (Scopus)

Resumen

An alkaline electroless treatment that forms a low-phosphorus Ni-P coating on magnesium is described. The treatment is shown to provide a suitable base for deposition of a high-phosphorus, electroless nickel coating using a slightly acidic bath. The composition of the alkaline bath was selected to limit the corrosion of the substrate during coating and to avoid the utilization of chromate ions or hydrofluoric acid. An optimal amount of NH 4HF 2 is identified that provides a relatively thin Ni-P coating, with the subsequently-deposited, high-phosphorus coating enhancing the corrosion resistance of the magnesium in sodium chloride solution.

Idioma originalInglés
Páginas (desde-hasta)194-200
Número de páginas7
PublicaciónCorrosion Science
Volumen55
DOI
EstadoPublicada - feb. 2012
Publicado de forma externa

Huella

Profundice en los temas de investigación de 'Effect of NH 4HF 2 on deposition of alkaline electroless Ni-P coatings as a chromium-free pre-treatment for magnesium'. En conjunto forman una huella única.

Citar esto