Tungsten Carbide Decarburization by Electrical Discharges

Abstract:

Electrospark deposition (ESD) was employed to clad WC-10%Co hard alloy on steel 1035 and the tribological properties of the coatings obtained were examined. The influence of the duration and frequency of discharges, the nature of the environment, and the carbon concentration in the electrode materials on the decarburization of tungsten carbide was studied. It is shown that the degree of tungsten carbide degradation can be reduced by decreasing the discharge frequency and increasing the concentration of carbon in the WC-Co electrode materials and also that the WC decarburization reaction is reversible on annealing.

• Periodical: Solid State Phenomena (Volume 213)
• Pages: 131-136
• DOI: https://doi.org/10.4028/www.scientific.net/SSP.213.131
• Online since: March 2014
• Authors: Alexander A. Burkov*, Sergey Anatolyevich Pyachin
• Keywords: Coating, Decarburization, Electrospark Deposition, Microhardness, WC-Co Cemented Carbide, Wear

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