Abstract
It was suggested, in our previous results, that the superior creep resistance of nitrogen contained cermets was attributed to the skeleton formation of carbonitrides. Then, the creep resistance of TiC-Mo2C-Ni system alloy was studied as a function of the amount of addition TiO2 (or oxygen content of the alloy), because oxygen in the alloy would result in the inferior wettability of binder to hard phases. It was found that the resistance increased with increasing the amount of addition TiO2, being caused by the skeleton formation of carbides, as expected. It was concluded that the creep resistance of such cermets must naturally increase, as the wettability of nickel binder became inferior compared with the usual case.
