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Improving the wear resistance of hard-alloy rolling disks by pulsed-plasma treatment

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Abstract

Pulsed-plasma surface treatment of VK20 hard-alloy (WC + 20% Co) components changes the crystallite size by 10–20% and enriches the binding metal Co with complex carbides of type W6Co6C and W3Co3C and nonequilibrium carbides of composition W2C, WC1-x, and W6C2.54. The internal stress (compression) reaches 800 N/mm2. Industrial tests show that pulsed-plasma treatment increases the wear resistance of the working surface of VK 20 hard-alloy (WC + 20% Co) rollers (rolling disks) by a factor of 2–4.

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Authors and Affiliations

  1. Paton Electrowelding Institute, Ukrainian Academy of Sciences, Kiev, Ukraine

    Yu. N. Tyurin & O. V. Kolisnichenko

  2. Institute of Strength Physics and Materials Science, Siberian Branch, Russian Academy of Sciences, Tomsk, Russia

    S. N. Kul’kov

Authors
  1. Yu. N. Tyurin
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  2. S. N. Kul’kov
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  3. O. V. Kolisnichenko
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Additional information

Original Russian Text © Yu.N. Tyurin, S.N. Kul’kov, O.V. Kolisnichenko, 2009, published in “Stal,” 2009, No. 10, pp. 98–101.

Participants in the industrial tests at ZAO MMZ included V.N. Brukhanskii, Yu.M. Morozov, M.M. Lituev, and N.P. Shevchenko (Solar Guard facility).

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Tyurin, Y.N., Kul’kov, S.N. & Kolisnichenko, O.V. Improving the wear resistance of hard-alloy rolling disks by pulsed-plasma treatment. Steel Transl. 39, 948–951 (2009). https://doi.org/10.3103/S0967091209100283

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  • DOI: https://doi.org/10.3103/S0967091209100283

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