Cemented carbonitride alloy with improved plastic deformation re

Details Cemented carbonitride alloy with improved plastic deformation re Cemented carbonitride alloy with improved plastic deformation re

1989-05-03

1989-12-05

Lechert, Jr., Stephen J.

Powder metallurgy processes

Powder metallurgy processes with heating or sintering

Metal and nonmetal in final product

419 38, 75241, 75242, B22F 100

Patent

active

048851329

ABSTRACT:
The present invention relates to an alloy for cutting tools comprising 75-97 % by weight of a hard carbonitride component and 3-25 % by weight of a binder metal, the hard component comprising titanium as the main metallic component besides tungsten, molybdenum, tantalum and optionally vanadium and as non metallic components carbon and nitrogen. The binder metal is selected from the group consisting of iron, cobalt and nickel.
The plastic deformation resistance of the alloy has been improved by adding tantalum as a mixed carbide (Ti,Ta)C possibly also including Nb.

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patent: 4049876 (1977-09-01), Yamamoto et al.
patent: 4120719 (1978-10-01), Nomura et al.
patent: 4300952 (1981-11-01), Ingelstrom et al.
patent: 4342594 (1982-08-01), Ettmayer et al.
patent: 4514224 (1985-04-01), Nishigaki

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