High fracture toughness aluminum-copper-lithium sheet or light-gauge plates suitable for fuselage panels
US8771441B2 · kind B2 · utility
4Cited by
4References
11Claims
0Family size
Inventors
Key dates
| Filing date | Dec 18, 2006 |
| Grant date | Jul 8, 2014 |
| Priority date | — |
| Expiry date | Feb 2, 2030 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22C21/16
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
An aluminum alloy comprising 2.1 to 2.8 wt. % Cu, 1.1 to 1.7 wt. % Li, 0.1 to 0.8 wt. % Ag, 0.2 to 0.6 wt. % Mg, 0.2 to 0.6 wt. % Mn, a content of Fe and Si less or equal to 0.1 wt. % each, and a content of unavoidable impurities less than or equal to 0.05 wt. % each and 0.15 wt. % total, and the alloy being substantially zirconium free.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.