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Deposition of hardening coatings on hard-alloy tools using solar power plant

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Soviet Powder Metallurgy and Metal Ceramics Aims and scope

Conclusions

Short-term surface treatment in the solar furnace greatly increases (1.7–4.5 times) the durability of the curring tools of the T16K6 and VK8 hard alloys with the titanium nitride coatings.

The pyrometric method of inspection showed that a temperature gradient forms from the surface into the depth of the specimen. The experimental procedure made it possible to determine the correlation between the changes in the composition (the intensification of the diffusion processes), structure, and the variation of the normal spectral emissivity of the hard alloy.

In the T15K6 alloys diffusion of carbon from the substrate into the coating is considerably more intense than in the VK8 alloys. This can be explained by the wider range of homogeneity of the carbides included in the composition of the hard alloys of the TK type.

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Literature cited

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Authors and Affiliations

  1. Institute of Problems of Material Science, Academy of Sciences of the Ukrainian SSR, Ukraine

    L. A. Ivashchenko, G. V. Rusakov, V. V. Pasichnyi, A. I. Stegnii & S. S. Ponomarev

Authors
  1. L. A. Ivashchenko
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  2. G. V. Rusakov
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  3. V. V. Pasichnyi
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  4. A. I. Stegnii
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  5. S. S. Ponomarev
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Translated from Poroshkovaya Metallurgiya, No. 1(313), pp. 75–80, January, 1989.

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Ivashchenko, L.A., Rusakov, G.V., Pasichnyi, V.V. et al. Deposition of hardening coatings on hard-alloy tools using solar power plant. Powder Metall Met Ceram 28, 64–68 (1989). https://doi.org/10.1007/BF01171812

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  • DOI: https://doi.org/10.1007/BF01171812

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