Patent ID: 8834594
Filing Date: 2014-09-16
Classification: B22F,C22C,Y10T

Abstract:
1. A cemented carbide body comprising: a tungsten carbide phase; a binder phase comprising at least one metal of the iron group or an alloy thereof; a solid solution phase of carbides of zirconium and niobium (Zr,Nb)C; and cubic carbides in an amount ranging from about 0.5 volume percent to about 6 volume percent, wherein the solid solution phase of (Zr,Nb)C is the sole solid solution phase of the cemented carbide body and (Zr,Nb)C are the only cubic carbides present in the cemented carbide body, the cemented carbide body having a mass ratio of Nb/(Nb+Zr)≧0.6.