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Article
Wear Characterization of Electrodeposited Ni-WC Composite Coatings
Tribology International
  • Surender Maddela, Missouri University of Science and Technology
  • B. Basu
  • R. Balasubramaniam
Abstract

The present contribution reports the tribological properties of Ni-WC composite coatings, electrodeposited on steel substrate. Commercial WC particles with an average size of 5 μm were codeposited with Ni on a mild steel substrate using a Watts bath at 50°C. The effect of plating variables on deposition behavior was studied. The amount of WC in the deposited layer decreased and plating efficiency increased with an increase in current density from 0.1 to 0.3 A/cm2. The tribological properties of the coatings were studied using a small amplitude reciprocating friction wear tester. The addition of WC in Ni increases the microhardness of the electrodeposited coatings. An important result is that the presence of embedded WC particles in the electrodeposited coatings results in a much lower coefficient of friction (COF) of 0.34, when compared with pure Ni (COF 0.62) and mild steel (COF 0.54).

Department(s)
Materials Science and Engineering
Keywords and Phrases
  • Ni-WC,
  • Coefficient of Friction,
  • Electrodeposition,
  • Wear Resistance
Document Type
Article - Journal
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2004 Elsevier, All rights reserved.
Publication Date
9-1-2004
Publication Date
01 Sep 2004
Citation Information
Surender Maddela, B. Basu and R. Balasubramaniam. "Wear Characterization of Electrodeposited Ni-WC Composite Coatings" Tribology International (2004) ISSN: 0301-679X
Available at: http://works.bepress.com/surender-maddela/9/