Aluminum-lithium alloys with hafnium
US4869870A · kind A · utility
23Cited by
8References
22Claims
0Family size
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Key dates
| Filing date | Mar 24, 1988 |
| Grant date | Sep 26, 1989 |
| Priority date | — |
| Expiry date | Mar 24, 2008 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22C21/16
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
An aluminum base alloy suitable for forming into a wrought product having improved combinations of strength and fracture toughness is provided. The alloy is comprised of 0.2 to 5.0 wt. % Li, 0.05 to 6.0 wt. % Mg, 0.2 to 5.0 wt. % Cu, 0 to 2.0 wt. % Mn, 0 to 1.0 wt. % Zr, 0.05 to 12.0 wt. % Zn, 0.05 to 1.0 wt. % Hf, 0.5 wt. % max. Fe, 0.5 wt. % max. Si, the balance aluminum and incidental impurities.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.