Patent ID: 7513295

Claim:
A method for the production of a cast metal wear part with a structure reinforced by a conglomerate of particles of one or more components selected from the group consisting of metallic carbides, borides, and intermetallic compounds, the particulate conglomerate having pores with cast metal therein, the method comprising: placing two or more powdered raw materials into a casting mold, the powdered raw materials having a shape in the mold; adding a molten casting metal to the casting mold with the raw material therein; and chemically reacting the two or more powdered raw materials in situ in the casting mold to provide the particulate porous conglomerate comprising one or more components, the molten casting metal triggering the in situ chemical reaction of the two or more powdered raw materials to provide the particulate porous conglomerate, the molten casting metal infiltrating the particulate porous conglomerate formed by the in situ chemical reaction and resulting in inclusion of casting metal in the conglomerate, each of the two or more powdered materials of a type and an amount which is effective for providing the reaction which provides the conglomerate of one or more of the components, the conglomerate with the cast metal therein in the structure of the cast metal wear part, the components selected from the group consisting of metallic carbides, borides, intermetallic compounds and mixtures thereof, the powdered raw materials selected from the group consisting of ferro-alloys, oxides, nickel, nickel alloys, iron, iron alloys, titanium, titanium alloys, carbon, carbon compounds, boron, boron compounds and mixtures thereof, the ferro-alloys selected from the group consisting of FerroTi, FerroCr, FerroNb, FerroW, FerroMo, FerroB, FerroSi, FerroZr, FerroV and mixtures thereof, the oxides selected from the group consisting of TiO 2 , FeO, Fe 2 O 3 , CrO 3 , Cr 2 O 3 , B 2 O 3 , MoO 3 , V 2 O 5 , CuO, MgO, NiO and mixtures thereof.