Process for producing a tough cermet

Details Process for producing a tough cermet Process for producing a tough cermet

1988-03-23

1990-02-27

Lechert, Jr., Stephen J.

Powder metallurgy processes

Powder metallurgy processes with heating or sintering

Metal and nonmetal in final product

75242, 75244, 419 10, 419 16, 419 14, 419 33, 419 60, 419 39, 419 23, B22F 100

Patent

active

049044451

ABSTRACT:
A tough cermet made from 20-92 weight % of TiC and/or TiCN, 5-50 weight % of WC and 3-30 weight % of an iron-gorup metal. This tough cermet has a three phase grain microstructure and is made is mixing titanium carbonitride powder and up to 70 weight % of the total amount of the tungsten carbide fine powder. The resulting mixture is melted to form a solid solution, pulverized, mixed with the remaining amount of tungsten carbide fine powder, and sintered at temperatures of 1325.degree.-1650.degree. C.

REFERENCES:
patent: 4636252 (1987-01-01), Yoshimura et al.
patent: 4769070 (1988-09-01), Tobioka et al.

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