Abstract
The nitrogen (N) contained TiC based cermets have usually been made by using Ti(C, N) or TiN. However, the difference in properties of cermets affected by N adding method seemed not to be clarified until now. Then, the difference in mechanical properties between Ti(C, N) and (TiC+TiN) based cermets was mainly studied. It was found that the hardness at room temperature and high temperature (1100°C) was superior in (TiC+TiN) based cermet to the other owing to the finer carbo-nitride structure. The wear resistance at high speed cutting of S48C was also superior in (TiC+TiN) based cermet. It was also concluded that such properties as transverse-rupture strength, creep strength, composition of binder and hard phases, etc. were nearly the same in two sorts of cermets.
