抄録
The effects of mean particle size and carbon content (or binder phase composition) on transverse-rupture strength of WC-10% Co two-phase alloys were investigated, by using specimens having the strength approx. 20∼50% higher than that of the specimens which have been reported by many other researchers. The test on transverse-rupture strength was conducted in accordance with ASTM–B 406–64. Even in such alloys of high strength, it was confirmed that the strength depended on the carbon content. The strength of the alloys reached its maximum at a mean particle size of about 2.2 μ. The maximum value was about 350 or 370 kg/mm2 in the high or low carbon alloy, respectively. Some considerations were given to the mechanism of the dependence of strength on the carbon content.
