Invention Grant
- Patent Title: Heat-resistant Al—Cu—Mg—Ag alloy and process for producing a semifinished part or product composed of such an aluminum alloy
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Application No.: US14234981Application Date: 2012-08-01
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Publication No.: US10240228B2Publication Date: 2019-03-26
- Inventor: Gregor Terlinde , Thomas Witulski , Matthias Hilpert
- Applicant: Gregor Terlinde , Thomas Witulski , Matthias Hilpert
- Applicant Address: DE Meinerzhagen
- Assignee: Otto Fuchs KG
- Current Assignee: Otto Fuchs KG
- Current Assignee Address: DE Meinerzhagen
- Agency: Polson Intellectual Property Law, PC
- Agent Margaret Polson; Christopher Sylvain
- Priority: EP11177747 20110817
- International Application: PCT/EP2012/064982 WO 20120801
- International Announcement: WO2013/023907 WO 20130221
- Main IPC: C22C21/00
- IPC: C22C21/00 ; C22C21/14 ; C22C21/16 ; C22F1/057 ; B22D7/00 ; C21D1/60 ; B22D27/00

Abstract:
A heat-resistant Al—Cu—Mg—Ag alloy for producing semi-finished parts or products, which is suitable for use at elevated temperatures and has good static and dynamic strength properties combined with an improved creep resistance and comprises: 0.3-0.7% by weight of silicon (Si), not more than 0.15% by weight of iron (Fe), 3.5-4.7% by weight of copper (Cu), 0.05-0.5% by weight of manganese (Mn), 0.3-0.9% by weight magnesium (Mg), 0.02-0.15% by weight of titanium (Ti), 0.03-0.25% by weight of zirconium (Zr), 0.1-0.7% by weight of silver (Ag), 0.03-0.5% by weight of scandium (Sc), 0.03-0.2% by weight of vanadium (V), not more than 0.05% by weight of others, individually, not more than 0.15% by weight of others, total, balance aluminum, is described. A process for producing a semi-finished part or product composed of the above-mentioned aluminum alloy is described.
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