Corrosion properties of electrodeposited nanocrystalline and amorphous patterned Ni-W alloy
Artikel i vetenskaplig tidskrift, 2009

Nickel-tungsten with satisfactory corrosion properties is a promising alloy to replace hard chromium. Relatively high adhesion between copper substrate and electrodeposited Ni-W alloy results in patterned morphology due to crack formation. In this work, corrosion resistance of patterned Ni-W alloys comprising 0-26 at.%.W were studied by potentiodynamic polarization and EIS in a medium containing Cl-. It is shown that corrosion resistance of single phase Ni-W is superior to amorphous and dual phase coated layers. It is also found that crack density is the dominant affecting factor on corrosion resistance of amorphous Ni-W alloys. (C) 2008 Elsevier Ltd. All rights reserved.

resistance

acid

films

Författare

Hossein Alimadadi

Chalmers, Material- och tillverkningsteknik

M. Ahmadi

University of Tehran

M. Aliofkhazraei

Tarbiat Modares University

S. R. Younesi

The Royal Institute of Technology (KTH)

Materials & Design

0261-3069 (ISSN)

Vol. 30 1356-1361

Ämneskategorier

Materialteknik

DOI

10.1016/j.matdes.2008.06.036