Ni-based fully amorphous metallic coating with high corrosion resistance

Author: Wang A. P.  

Publisher: Taylor & Francis Ltd

ISSN: 1362-3036

Source: Philosophical Magazine Letters, Vol.86, Iss.1, 2006-01, pp. : 5-11

Disclaimer: Any content in publications that violate the sovereignty, the constitution or regulations of the PRC is not accepted or approved by CNPIEC.

Previous Menu Next

Abstract

A Ni 53 Nb 20 Ti 10 Zr 8 Co 6 Cu 3 fully amorphous metallic coating has been deposited by means of kinetic metallization (KM) using gas atomized powders. As the thickness of the amorphous metallic coating is increased to 400?µm, it attains the excellent corrosion resistance of the amorphous alloy, as indicated by the extremely low passive current density and wide passive region in 1?kmol/m 3 HCl aqueous solution. The corrosion rate is as low as 10 –3 ?mm/year in the extremely corrosive environment of 6?kmol/m 3 HCl aqueous solution.