Process for reducing the disparities in mechanical values of tungsten-nickel-iron alloys
US4931252A · kind A · utility
35Cited by
5References
8Claims
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Key dates
| Filing date | May 27, 1988 |
| Grant date | Jun 5, 1990 |
| Priority date | — |
| Expiry date | May 27, 2008 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22C1/045
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A process for reducing disparities of mechanical properties in tungsten-nickel-iron alloys containing in % by weight 85 to 99% of tunsten, 1 to 10% of iron, the alloys being obtained from tungsten, nickel and iron powders which have the same or different grain diameter, shape and size distribution, which entails simultaneously adding an effective amount of each of cobalt and manganese powders to tungsten powder or to a mixture of tungsten, nickel and iron powders.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.