The formation of structure in ultrafine WC–Co carbide material in the presence of inhibitory additives

Kablov E.N., Lukinа E.A., Zavodov A.V., Efimochkin I.Yu.
UDC
669.017.165
DOI
10.18577/2307-6046-2020-0-45-89-99
Article PDF (Russian) (1.01 MB)
How to cite
Kablov E.N., Lukinа E.A., Zavodov A.V., Efimochkin I.Yu. The formation of structure in ultrafine WC–Co carbide material in the presence of inhibitory additives // Proceedings of VIAM. 2020. No. 4-5. DOI: 10.18577/2307-6046-2020-0-45-89-99. URL: https://test.viam.ru/en/journal/2020/4-5/10
Keywords
cemented carbide, tungsten carbide, WC–Co, inhibitor, coercive force, Co-binder, hardness.
Abstract

Samples of 6 milling cutters from different producers made of WC–Co carbide material were studied. Correlation dependences of hardness and coercive force on the size of grain WC and specific interfacial surface are constructed based on the carried out researches. It is shown that the value of the coercive force can indirectly estimate the grain size WC. The results of the mapping and distribution profiles of the inhibitors over the volume of Co-bundles reveal the nature of this distribution: V is concentrated mainly at the borders of tungsten carbide, while the Cr is uniformly distributed over the volume of Co binder.

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