Al—Cu alloy product suitable for aerospace application
US8877123B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 28, 2008 |
| Grant date | Nov 4, 2014 |
| Priority date | — |
| Expiry date | Jul 29, 2030 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22F1/057
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The invention relates to an age-hardenable aluminium alloy product for structural members having a chemical composition including, in wt. %: Cu about 3.6 to 6.0%, Mg about 0.15 to 1.2%, Ge about 0.15 to 1.1%, Si about 0.1 to 0.8%, Fe<0.25%, balance aluminium and normal and/or inevitable elements and impurities. Zn, Ag and/or Ni may or may not be present. A typical range for Zn is <0.3 or, in a further embodiment about 0.3 to 1.3%. A typical range for Ag is <0.1 or, in a further embodiment about 0.1 to 1.0%. Products made from this aluminium alloy product are very suitable for aerospace applications. The alloy can be processed to various product forms, e.g. sheet, thin plate, thick plate, extruded or forged products. Products made from this alloy can be used also as a cast product, ideally as die-cast product.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.