Aluminum-lithium alloys having improved corrosion resistance
US4897126A · kind A · utility
10Cited by
1References
43Claims
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Key dates
| Filing date | Jun 30, 1988 |
| Grant date | Jan 30, 1990 |
| Priority date | — |
| Expiry date | Jun 30, 2008 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22F1/04
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
An aluminum base alloy wrought product having improved corrosion resistance in addition to combinations of strength and toughness. The product comprises 2.2 to 3.0 wt. % Li, 0.4 to 2.0 wt. % Mg, 0.2 to 1.6 wt. % Cu, 0 to 2.0 wt. % Mn, 0.5 wt. % max. Fe, 0.5 wt. % max. Si, the balance aluminum and incidental impurities and has the ability to develop improved combinations of strength and toughness in response to an aging treatment. Prior to an aging step, the product having imparted thereto a working effect equivalent to stretching so that after an aging step it has improved combinations of strength and toughness.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.