High toughness cermet and a process for the production of the sa

Details High toughness cermet and a process for the production of the sa High toughness cermet and a process for the production of the sa

1987-09-01

1988-09-06

Lechert, Jr., Stephen J.

Specialized metallurgical processes, compositions for use therei

Compositions

Consolidated metal powder compositions

75244, 419 13, 419 16, C22C 2904

Patent

active

047690704

ABSTRACT:
High hardness and high toughness nitrogen-containing sintered hard alloys or cermets useful for cutting tools, in particular, high speed cutting are provided which comprises a hard dispersed phase consisting essentially of a mixed carbonitride of titanium and at least one element selected from the group consisting of Group IVa, Va, and VIa elements of Periodic Table, except titanium, and a binder metal phase consisting essentially of at least one metal selected from the group consisting of nickel and cobalt, and unavoidable impurities, the hard dispersed phase having previously been subjected to a solid solution forming treatment at a temperature of at least the sintering temperature before sintering.

REFERENCES:
patent: 3994692 (1976-11-01), Rudy
patent: 4049876 (1977-09-01), Yamamoto et al.
patent: 4120719 (1978-10-01), Nomura et al.
patent: 4277283 (1981-07-01), Tobioka et al.

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