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AssigneesBaker Hughes Incorporated, TDY Industries, Inc.
InventorsPrakash K. Mirchandani, Jimmy W. Eason, James J. Oakes, James C. Westhoff, Gabriel B. Collins
Estimating the term…
Binder compositions for use in forming a bit body of an earth-boring bit include at least one of cobalt, nickel, and iron, and at least one melting point-reducing constituent selected from at least one of a transition metal carbide up to 60 weight percent, a transition metal boride up to 60 weight percent, and a transition metal silicide up to 60 weight percent, wherein the weight percentages are based on the total weight of the binder. Earth-boring bit bodies include a cemented tungsten carbide material comprising tungsten carbide and a metallic binder, wherein the tungsten carbide comprises greater than 75 volume percent of the cemented tungsten carbide material.
A body of an earth-boring tool, comprising hard particles in a binder material, the hard particles comprising a transition metal carbide, the binder material comprising a eutectic or near-eutectic composition of the transition metal carbide and at least one of cobalt, iron, and nickel, wherein the transition metal carbide comprises greater than 75 volume percent of the body.
A body of an earth-boring tool, comprising hard particles in a binder material, the hard particles comprising tungsten carbide, the binder material comprising a eutectic or near-eutectic composition of the tungsten carbide and at least one of cobalt, iron, and nickel.
A cast body of an earth-boring tool, comprising a composite material having a microstructure including a hard ceramic phase and a metal phase, wherein the hard ceramic phase comprises at least 75 percent by volume of the composite material, and wherein at least a portion of the composite material is formed from a eutectic or near-eutectic composition.
Dependencies are inferred from the claim text.