A process line tool of a cemented carbide comprising in wt %; about 2.9-11 Ni; about 0.1-2.5 Cr.sub.3C.sub.2; and about 0.1-1 Mo; and a balance of WC, with an average WC grain size less than or equal to 0.5 μm.

A process line tool of a cemented carbide comprising in wt %; about 2.9-11 Ni; about 0.1-2.5 Cr.sub.3C.sub.2; and about 0.1-1 Mo; and a balance of WC, with an average WC grain size less than or equal to 0.5 μm.

A disc cutter for a cutting unit used in an undercutting operation and a method of producing the same. The disc cutter including an annular disc body made of a metal alloy or metal matrix composite having a first side, a second side arranged substantially opposite to the first side and a radially peripheral part. At least one metal alloy, metal matrix composite or cemented carbide cutting part is mounted in and substantially encircling the radially peripheral part of the disc body which protrudes outwardly therefrom to engage with the rock during the mining operation. The at least one cutting part is made from a material having a higher wear resistance than the material used for the disc body, wherein the disc body and the cutting part are joined by diffusion bonds.

Disclosed herein, in certain embodiments, are composite materials, methods, tools and abrasive materials comprising a tungsten-based metal composition, a tungsten carbide, and an alloy. In some cases, the composite materials or matrix are resistant to oxidation.

Disclosed herein, in certain embodiments, are composite materials, methods, tools and abrasive materials comprising a tungsten-based metal composition, a tungsten carbide, and an alloy. In some cases, the composite materials or matrix are resistant to oxidation.

A method of redistributing the binder phase of a cemented carbide mining insert having one or more hard-phase components and a binder includes the steps of: a) providing a green cemented carbide mining insert; b) applying at least one binder puller selected from a metal oxide or a metal carbonate to the surface of the green cemented carbide mining insert; and c) sintering the green cemented carbide mining insert, the metal oxide or metal carbonate being only applied to at least one local area on the surface of the green cemented carbide mining insert. Moreover, a cemented carbide having a hardness gradient and the use thereof is also provided.

A method of redistributing the binder phase of a cemented carbide mining insert having one or more hard-phase components and a binder includes the steps of: a) providing a green cemented carbide mining insert; b) applying at least one binder puller selected from a metal oxide or a metal carbonate to the surface of the green cemented carbide mining insert; and c) sintering the green cemented carbide mining insert, the metal oxide or metal carbonate being only applied to at least one local area on the surface of the green cemented carbide mining insert. Moreover, a cemented carbide having a hardness gradient and the use thereof is also provided.

Provided is a corrosion and erosion resistant cemented carbide for high demand including, for example, oil and gas flow applications. The cemented carbide grade may include, for example, including the following constituents Co, Ni, Cr, Mo and WC. The binder phase content of the cemented carbide is between 5.1 to 7.5 wt %. The wt % of Co in the cemented carbide may be less than the wt % of Ni.

Provided is a corrosion and erosion resistant cemented carbide for high demand including, for example, oil and gas flow applications. The cemented carbide grade may include, for example, including the following constituents Co, Ni, Cr, Mo and WC. The binder phase content of the cemented carbide is between 5.1 to 7.5 wt %. The wt % of Co in the cemented carbide may be less than the wt % of Ni.

The present disclosure relates to a cutting tool including a cemented carbide substrate having WC, gamma phase and a binder phase. The substrate is provided with a binder phase enriched surface zone, which is depleted of gamma phase, wherein no graphite and no ETA phase is present in the microstructure and wherein the binder phase is a high entropy alloy.