Effect of Parameters of Electric Spark Discharge on the Physico-Chemical Characteristics of Steel 45 Surface after the ESA Electrodes Based on WC–8%Co with Chromium–Carbide Additives

— The work studies the effects of the parameters of electric spark discharge and tungsten carbide-based electrode materials on electric spark alloying using chromium carbide nanopowder additives on the physico-chemical and operational characteristics of the coating surface. It is found that an incre...

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Bibliographic Details
Published in:Surface engineering and applied electrochemistry 2019-05, Vol.55 (3), p.251-258
Main Authors: Nikolenko, S. V., Burkov, A. A., Dvornik, M. I., Zaitsev, A. V., Sui, N. A.
Format: Article
Language:English
Subjects:
Additives
Chromium carbide
Electric discharges
Electric industries
Electric sparks
Electrode materials
Electrodes
Engineering
Grain growth
High tech industries
Machines
Manufacturing
Medium carbon steels
Organic chemistry
Parameters
Processes
Protective coatings
Spark alloying
Surface roughness
Tungsten carbide
Wear resistance
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Summary:— The work studies the effects of the parameters of electric spark discharge and tungsten carbide-based electrode materials on electric spark alloying using chromium carbide nanopowder additives on the physico-chemical and operational characteristics of the coating surface. It is found that an increase in the surface roughness occurs with an increase in the duration of the electric spark discharge from 20 to 80 μs with a standard WC–8%Co hard alloy. The addition of 1–5% nanopowder of the grain growth inhibitor improves the physicochemical properties of coatings, reduces surface roughness, and increases wear resistance.
ISSN:1068-3755
1934-8002
DOI:10.3103/S1068375519030141