Oxidation-resistant and corrosion-resistant high-temperature alloy for directional solidification on the basis of an intermetallic compound of the nickel aluminide type
US4990199A · kind A · utility
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Key dates
| Filing date | Nov 13, 1989 |
| Grant date | Feb 5, 1991 |
| Priority date | — |
| Expiry date | Nov 13, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22C19/03
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
An oxidation-resistant and corrosion-resistant high-temperature alloy for directional solidification on the basis of an intermetallic compound of the nickel aluminide type having the following composition: PA1 Al=10-16 atomic % PA1 Si=0.5-8 atomic % PA1 Ta=0.5-9 atomic % PA1 Hf=0.1-2 atomic % PA1 B=0.1-2 atomic % PA1 Ni=the remainder The alloy has at least 90% by volume of the intermetallic phases Ni.sub.3 Al, Ni.sub.3 Si and Ni.sub.3 Ta.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.