Boronized wear-resistant materials and methods thereof

Details Boronized wear-resistant materials and methods thereof Boronized wear-resistant materials and methods thereof

C - Chemistry, Metallurgy

23

C

C23C 8/68 (2006.01) B24D 3/14 (2006.01) C22C 29/02 (2006.01) E21B 10/46 (2006.01)

Patent

CA 2291804

A boronized wear-resistant material that includes a boron-containing composition is disclosed. The boron-containing composition includes tungsten carbide and a compound represented by the formula W3MB3, where M is selected from the group consisting of iron, nickel, cobalt and alloys thereof. Particularly, a boride layer containing WC and W3CoB3 may be formed over a cemented tungsten carbide substrate by a suitable boronizing process. Additional compounds present in the boride layer include CoB, W2CoB2, and WB. A relatively thick and uniform boride layer may be obtained over a carbide substrate to form a wear-resistant body. Such a wear- resistant body may be used to manufacture cutting tools, drawing dies, inserts for an earth-boring bit, face seals, bearing surfaces, nozzles, and so on.

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