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Influence of Temperature in Barothermal Treatment of Sintered Cemented Carbides on the Evolution of Their Structure and Properties

  • PRODUCTION, STRUCTURE, PROPERTIES
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Abstract

We investigated the effect of barothermal treatment at a pressure of 8 GPa and temperatures of 1450–1700°C on the structure and properties of cemented carbides with varying cobalt concentrations. The application of barothermal treatment led to a 30% increase in the grain size of the carbide phase and a decrease in overall porosity. For WC–6Co alloys treated under conditions of solid-phase sintering, an increase in hardness and the stress intensity factor are observed. The barothermal treatment of WC–15Co alloys at temperatures corresponding to the existence of a liquid phase leads to the formation of Co3W3C intermetallic phases.

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Funding

This work was supported by ongoing institutional funding. No additional grants to carry out or direct this particular research were obtained.

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Authors and Affiliations

  1. Bakul Institute for Superhard Materials, National Academy of Sciences of Ukraine, 04074, Kyiv, Ukraine

    I. O. Hnatenko, I. V. Andreiev, S. O. Lysovenko, O. S. Osipov & T. O. Kosenchuk

  2. Taras Shevchenko National University, 01033, Kyiv, Ukraine

    O. S. Roik

Authors
  1. I. O. Hnatenko
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  2. I. V. Andreiev
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  3. S. O. Lysovenko
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  4. O. S. Roik
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  5. O. S. Osipov
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  6. T. O. Kosenchuk
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Corresponding author

Correspondence to I. O. Hnatenko.

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Translated by O. Zhukova

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Hnatenko, I.O., Andreiev, I.V., Lysovenko, S.O. et al. Influence of Temperature in Barothermal Treatment of Sintered Cemented Carbides on the Evolution of Their Structure and Properties. J. Superhard Mater. 45, 444–450 (2023). https://doi.org/10.3103/S1063457623060047

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  • DOI: https://doi.org/10.3103/S1063457623060047

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