Effekt of thermodynamic cyclic loads for high-strength diamond wear mechanism destroying mountain dreed

  • A. M. Isonkin V. N. Bakul Institute for Superhard Materials of the National Academy of Sciences of Ukraine
  • V. N. Tkach V. N. Bakul Institute for superhard materials of NAS of Ukraine
Keywords: synthetic diamonds, drill bits, wear mechanism, micro fracture

Abstract

The paper reflects the results of studies of the mechanism of wear of high-strength synthetic diamonds in the destruction of their rock. The contacting of diamonds with protrusions of the rock to be destroyed leads to the formation of a network of microcracks characteristic of the fatigue fracture mechanism, and may be the result of cyclical appearance of local areas of thermodynamic stresses, which leads to the microcalling of the faces of their tops and the separation of scaly-like fragments from their surface .

Published
2019-09-02
Section
Rock destructive tool from superhard materials and technology of its application