Investigation of the indenter penetration zone in the wear particle of the matrix of a diamond-containing rock-cutting tool

Keywords

brittle wear particle, sludge, diamond-containing matrix, rock cutting tool, zone of indenter penetration.

Cite as

Vynohradova O. P., Vasylchuk О. S., Maystrenko А. L., Zakora А. P., Tkach V. М., Vapnichna V. V., Ilnitska G. D., Oliinyk N. О., Belorusets V. V., Liudvichenko O. P., and Bologova L. М. Investigation of the indenter penetration zone in the wear particle of the matrix of a diamond-containing rock-cutting tool. Physico¬chemical Mechanics of Materials. 2024. 60(1), 057-062.

https://doi.org/10.15407/pcmm2024.01.057

Abstract

The zone of interaction of the rock roughness element with the surface of the matrix mate­rial Ni (94%)–Sn (6%) of the rock-cutting tool, equipped with diamonds of grain size 500/400 and their relative concentration of 100%, in the wear particle of the matrix mate­rial is considered. In the zone of indenter penetration in this wear particle a system of microcracks originating at the place of direct contact of the indenter with the surface of the matrix and branches in the direction of indenter penetration into the matrix surface was found. The material of the matrix wears out brittle and one of the methods of microindentation of the brittle diamond-containing matrix surface under dynamic loading is “micro-impacts” of the rock roughness elements on its surface with the subsequent delami­nation of discrete particles, the projection of which is similar to the projection of “swallow tail”.

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