Earth-boring tools and components thereof including material having hard phase in a metallic binder, and metallic binder compositions for use in forming such tools and components

摘要

Binder compositions for use in forming a bit body of an earth-boring bit includes 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.