CPC C22C 29/02 (2013.01) [B22F 3/105 (2013.01); B22F 3/14 (2013.01); C22C 1/051 (2013.01); C22C 29/067 (2013.01); C22C 29/08 (2013.01)] | 10 Claims |
1. A method of forming a tungsten carbide cemented body, the method comprising:
providing tungsten carbide; and
sintering a substantially cobalt-free binder comprising a dispersion strengthened, iron-based alloy that comprises iron, nickel and zirconium, wherein said cobalt-free binder is sintered with, and uniformly distributed around, the tungsten carbide,
wherein the sintered tungsten carbide and iron-based alloy comprises a hardness value of at least 15 GPa and a fracture toughness value of at least 11 MPa√m
and further wherein the iron-based alloy comprises a solid solution phase without a graphite.
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