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Regeneration of the WC-Co hard alloy with the use of gaseous zinc

  • Metallurgy of Non-Ferrous Metals
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Abstract

The technology of regeneration of the WC-Co hard alloy by gaseous zinc is developed. It is shown that the diffusion of Zn in the alloy proceeds mainly along phase boundaries between tungsten carbide and cobalt with a high rate comparable to that during the diffusion of Zn in aqueous solutions. The new technology provides a substantial decrease in the power consumption owing to a decrease in the duration of operations compared with the classic zinc process. The experimental values of the activation energy of the diffusion of Zn in the hard alloy and cobalt are found to be 1.74 and 13.97 kJ/mol, respectively.

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References

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Authors and Affiliations

  1. Department of Metallurgy of Non-Ferrous Metals, North-Caucasian Mining and Metallurgical Institute (State Technological University), ul. Kosmonavta Nikolaeva 44, Vladikavkaz, 362021, Russia

    M. I. Alkatsev, N. V. Svistunov & I. G. Trotsenko

Authors
  1. M. I. Alkatsev
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  2. N. V. Svistunov
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  3. I. G. Trotsenko
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Corresponding author

Correspondence to M. I. Alkatsev.

Additional information

Original Russian Text © M.I. Alkatsev, N.V. Svistunov, I.G. Trotsenko, 2008, published in Izvestiya VUZ Tsvetnaya Metallurgiya, 2008, No. 3, pp. 17–21.

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Alkatsev, M.I., Svistunov, N.V. & Trotsenko, I.G. Regeneration of the WC-Co hard alloy with the use of gaseous zinc. Russ. J. Non-ferrous Metals 49, 156–159 (2008). https://doi.org/10.3103/S106782120803005X

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  • DOI: https://doi.org/10.3103/S106782120803005X

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