Abstract
The various properties of this sort of composite alloys would be affected by the grain size of binder phase, as well as by the other factors. Therefore in this paper, the factors affecting the grain size of TiC-(10-30)%Mo-(10-30)%Ni alloys were mainly studied.
Results obtained were as follows: (1) The grain size was generally revealed out by thermal etching. (2) The grain size increased with sintering temperatures, C and Ni contents, and with decreasing Mo contents. The large grain size like a columnar structure was characterized. Discussions about these results were given. (3) The effect of grain size on the strength of alioys and also the structure of the grain boundary were investigated.
