High thermal conductivity hardfacing for drilling applications

Details High thermal conductivity hardfacing for drilling applications High thermal conductivity hardfacing for drilling applications

C - Chemistry, Metallurgy

22

C

C22C 49/10 (2006.01) C22C 29/08 (2006.01) C22C 30/00 (2006.01) E21B 10/46 (2006.01)

Patent

CA 2702658

A high thermal conductivity hardmetal composition comprising tungsten carbide in a nickel based matrix binder is disclosed. The hardmetal has at least 50 wt% tungsten carbide, the tungsten carbide being composed of at least 50 vol% of spherical particles. The binder material is composed of at least 98.5 wt% of components selected from the group consisting of nickel, boron, and silica, and the binder flux of boron plus silica content ranges from between 3.5 to 10.0 wt% of the binder material.

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