Process for making aluminum-lithium alloys of high toughness
US5085830A · kind A · utility
2Cited by
58References
14Claims
0Family size
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Inventor
Key dates
| Filing date | Mar 24, 1989 |
| Grant date | Feb 4, 1992 |
| Priority date | — |
| Expiry date | Mar 24, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22C21/06
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The toughness of Al-Li, Al-Mg and Mg-Li alloys is increased by a melting and refining process designed to reduce the concentration of alkali metal impurities below about 1 ppm and preferably below about 0.1 ppm. The hydrogen and chlorine gas constituents are also significantly reduced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.