Nanocrystalline (Ti,M)(CN)-based Cermets for Cutting Tool Applications

摘要

Although this paper was presented in the 'functionally graded materials' session, it dealt only with homogeneous hardmetals. The mechanical properties of TiC- or Ti(C,N)-based hardmetals are typically poor, partly because the constituent powders are generally mixed rather than prealloyed. In this instance, oxide starter materials were high-energy milled to maintain homogeneous nanosized particles, then carbothermally reduced to ensure maximum intersolubility.