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BIBTEX RIS

The influence of Ni and Co concentration in the electroplating bath on Ni‐Co‐W alloys properties

2017; Wiley; Volume: 96; Issue: 6 Linguagem: Inglês

10.1002/cjce.23076

ISSN

1939-019X

Autores

Caio Felipe Baldessin, Thayane Carpanedo de Morais Nepel, Ambrósio Florêncio de Almeida Neto,

Tópico(s)

Nanoporous metals and alloys

Resumo

In this study, we evaluated the influence of nickel and cobalt concentrations in an electrochemical bath for a ternary Ni‐Co‐W coating alloy electrodeposition. The X‐ray diffraction indicated formation of amorphous coating alloys for higher Co concentration and a crystalline coating alloys for higher Ni concentration. Statistical evaluation showed a mathematical model connecting the increase of alloy deposition efficiency and the Ni and Co concentration in the electrochemical bath. Corrosion tests indicated that coating alloys with higher Ni concentration, which are crystalline alloys, showed higher polarization resistance (in NaCl 0.1 mol/L) indicating that composition can influence the corrosion resistance more than the crystallinity.

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