Some speculations on an increase of WC–Co cemented carbide service life under dynamic loads

A correlation is found between structure, physico-mechanical properties of cemented carbides and the development of defects in them. It is shown that in cemented carbides that have high values of fracture toughness, work of deformation and fatigue fracture parameters, the rate of the organization of defects decreases. This result has been achieved by increasing the energy absorbing ability of binding and carbide phases, reducing stress in the binding phase and increasing adhesion at interfaces.