Boron-treated hard metal

Details Boron-treated hard metal Boron-treated hard metal

1990-10-09

1992-05-26

Hunt, Brooks

Specialized metallurgical processes, compositions for use therei

Compositions

Consolidated metal powder compositions

75244, C22C 2902

Patent

active

051164167

ABSTRACT:
A hard, relatively non-brittle, cemented carbide body is made by sintering pressed grade carbide powders in the presence of a boron-containing material such as boron nitride. During sintering, appreciable quantities of boron migrate or diffuse into the body to become incorporated throughout the microstructure of the carbide resulting in the formation of a third quarternary phase comprised of tungsten, nickel, boron and carbon.

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International Journal of Fracture, vol. 15, No. 6, Dec., 1979, pp. 515-536.

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