Abrasive wear-resistant materials, drill bits and drilling tools including abrasive wear-resistant materials, methods for applying abrasive wear-resistant materials to drill bits and drilling tools, and methods for securing cutting elements to a drill bit

摘要

An abrasive wear-resistant material includes a matrix and sintered and cast tungsten carbide pellets. A device for use in drilling subterranean formations includes a first structure secured to a second structure with a bonding material. An abrasive wear-resistant material covers the bonding material. The first structure may include a drill bit body and the second structure may include a cutting element. A method for applying an abrasive wear-resistant material to a drill bit includes providing a bit, mixing sintered and cast tungsten carbide pellets in a matrix material to provide a pre-application material, heating the pre-application material to melt the matrix material, applying the pre-application material to the bit, and solidifying the material. A method for securing a cutting element to a bit body includes providing an abrasive wear-resistant material to a surface of drill bit that covers a brazing alloy disposed between the cutting element and the bit body.