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Carburized monotungsten and ditungsten carbide eutectic particles, materials and earth-boring tools including such particles, and methods of forming such particles, materials, and tools
Carburized monotungsten and ditungsten carbide eutectic particles, materials and earth-boring tools including such particles, and methods of forming such particles, materials, and tools
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机译:渗碳碳化钨和碳化钨共晶颗粒,包括此类颗粒的材料和掘土工具,以及形成此类颗粒的方法,材料和工具
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摘要
Earth-boring tools for drilling subterranean formations include a particle-matrix composite material comprising a plurality of at least partially carburized monotungsten carbide and ditungsten carbide eutectic particles dispersed throughout a matrix material. In some embodiments, the particles are at least substantially fully carburized monotungsten carbide and ditungsten carbide eutectic particles. In further embodiments, the particles are generally spherical or at least substantially spherical. Methods of forming such particles include exposing a plurality of monotungsten carbide and ditungsten carbide eutectic particles to a gas containing carbon. Methods of manufacturing such tools include providing a plurality of at least partially carburized monotungsten carbide and ditungsten carbide eutectic particles or at least substantially completely carburized monotungsten carbide and ditungsten carbide eutectic particles within a matrix material.
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