High-strength, high toughness Al-Zn alloy product and method for producing such product
US7883591B2 · kind B2 · utility
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32Claims
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Key dates
| Filing date | Sep 30, 2005 |
| Grant date | Feb 8, 2011 |
| Priority date | — |
| Expiry date | Jun 1, 2026 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22C21/10
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Disclosed is a Al—Zn alloy wrought product, and a method of manufacturing such a product, with an improved combination of high toughness and high strength by maintaining good corrosion resistance, the alloy including (in weight percent): Zn 6.0-11.0, Cu 1.4-2.2, Mg 1.4-2.4, Zr 0.05-0.15, Ti <0.05, Hf and/or V <0.25, and optionally Sc and/or Ce 0.05-0.25, and Mn 0.05-0.12, other elements each less than 0.05 and less than 0.50 in total, balance aluminium, wherein such alloy has an essentially fully unrecrystallized microstructure at least at the position T/10 of the finished product.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.