High toughness cermet and a process for the production of the same
US4769070A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 1, 1987 |
| Grant date | Sep 6, 1988 |
| Priority date | — |
| Expiry date | Sep 1, 2007 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22C1/051
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.