Effect of TaC on plastic deformation of WC–Co and Ti(C,N)–WC–Co

Effect of carbon on the microstructures and mechanical properties of as cast Nb-base alloy

“…For example, some defects such as dislocations and stacking faults were observed in primary carbides (Nb/Ti: ∼1) in as-cast NbTiC alloys [16] but not in the present alloys (Ti-rich carbide); it was easier to find secondary carbides (Nb/Ti: ∼1) with significant twin deformation in compressed NbTiC samples [16] compared to secondary carbides (Ti-rich) in the present study. Ta addition improved the plastic deformation of WC in WC-Co composite [22]. A detailed investigation of the influence of carbides on microplasticity would clearly be of interest; this would include deformation of and near the carbides.…”

APT analysis of WC–Co based cemented carbides

“…The strength of WC/WC grain boundaries as well as of WC/(M,W)C phase boundaries is very important for the material. During plastic deformation at high cutting temperatures, some of these boundaries break up and get infiltrated by Co [3]. Ab initio calculations predict that Ti, V, Cr, Mn and Co will segregate to WC/WC grain boundaries and increase the work of separation, thus having a strengthening effect on the material [4,5].…”

Wear mechanisms of WC–Co cutting tools from high-speed tribological tests

“…On the other hand, during cutting processes, the generated microchips can be embedded between surfaces in friction and can play a part as debris like in tribological tests. Moreover, the temperature of the interface is a parameter that affects the mechanical and thermophysical properties of cemented carbides [6,7]. The aim of this paper is to study the relationship between the temperature generated by friction and wear of WC-Co tool grade.…”