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Corrosion properties of electrodeposited nanocrystalline and amorphous patterned Ni-W alloy
KTH, School of Industrial Engineering and Management (ITM), Materials Science and Engineering.
2009 (English)In: MATERIALS & DESIGN, ISSN 0261-3069, Vol. 30, no 4, 1356-1361 p.Article in journal (Refereed) Published
Abstract [en]

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.

Place, publisher, year, edition, pages
2009. Vol. 30, no 4, 1356-1361 p.
Keyword [en]
Affecting factors, Coated layers, Copper substrates, Corrosion properties, Crack densities, Crack formations, Dual phase, Hard chromiums, High adhesions, Nanocrystalline, Alloys, Amorphous alloys, Cerium alloys, Chromium, Copper, Corrosion, Electrochemical impedance spectroscopy, Metallic compounds, Nickel, Nickel alloys, Tungsten, Tungsten alloys
National Category
Materials Engineering
Identifiers
URN: urn:nbn:se:kth:diva-32195DOI: 10.1016/j.matdes.2008.06.036ISI: 000263249700058Scopus ID: 2-s2.0-57249086398OAI: oai:DiVA.org:kth-32195DiVA: diva2:409543
Note
QC 20110408Available from: 2011-04-08 Created: 2011-04-08 Last updated: 2011-04-08Bibliographically approved

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