EP 2449142 B1 20170503 - ALUMINIUM-COPPER-LITHIUM ALLOY WITH IMPROVED MECHANICAL RESISTANCE AND TOUGHNESS
Title (en)
ALUMINIUM-COPPER-LITHIUM ALLOY WITH IMPROVED MECHANICAL RESISTANCE AND TOUGHNESS
Title (de)
ALUMINIUM-KUPFER-LITHIUM-LEGIERUNG MIT VERBESSERTEN MECHANISCHE BESTÄNDIGKEIT UND ZÄHIGKEIT
Title (fr)
ALLIAGE ALUMINIUM CUIVRE LITHIUM A RESISTANCE MECANIQUE ET TENACITE AMELIOREES
Publication
Application
Priority
- FR 2010000455 W 20100622
- FR 0903096 A 20090625
- US 22024909 P 20090625
Abstract (en)
[origin: WO2010149873A1] The invention relates to a wrought product such as an extruded, rolled and/or forged product, made of an alloy based on aluminium comprising, in % by weight, Cu: 3.0 - 3.9; Li: 0.8 - 1.3; Mg: 0.6 - 1.0; Zr: 0.05 - 0.18; Ag: 0.0 - 0.5; Mn: 0.0 - 0.5; Fe + Si = 0.20; Zn = 0.15; at least one element from Ti: 0.01-0.15; Sc: 0.05 - 0.3; Cr: 0.05 - 0.3; Hf: 0.05 - 0.5; other elements = 0.05 each and = 0.15 in total, the remainder being aluminium. The invention also relates to the process for manufacturing this product. The products according to the invention are particularly useful for producing thick products made of aluminium intended to produce structural components for the aeronautical industry.
IPC 8 full level
C22C 21/00 (2006.01); C22C 21/16 (2006.01); C22F 1/04 (2006.01); C22F 1/057 (2006.01)
CPC (source: EP US)
C22C 21/00 (2013.01 - EP US); C22C 21/16 (2013.01 - EP US); C22F 1/04 (2013.01 - EP US); C22F 1/057 (2013.01 - EP US)
Citation (opposition)
Opponent : Arconic Inc
- WO 2009036953 A1 20090326 - ALERIS ALUMINUM KOBLENZ GMBH [DE], et al
- WO 9504837 A1 19950216 - MARTIN MARIETTA CORP [US]
- US 5389165 A 19950214 - CHO ALEX [US]
- E.A. STARKE.JR: "NASA-UVa Light Aerospace Alloy and Structures Technology Program", ALUMINUM-BASED MATERIALS FOR HIGH SPEED AIRCRAFT, SEMI-ANNUAL, February 1995 (1995-02-01), pages 1 - 384, XP055462617
- DIERTRICH G.ALTENPOHL: "Aluminum: Technology, Applications and Environment", 1998, article "chapter 6", pages: 77 - 125, XP055462619
- M.A. EASTON ET AL.: "The Effect of Alloy Content on the Grain Refinement of Aluminium Alloys", LIGHT METALS, 2001, pages 1 - 7, XP055462625
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR
DOCDB simple family (publication)
FR 2947282 A1 20101231; FR 2947282 B1 20110805; BR PI1011757 A2 20180306; BR PI1011757 B1 20190409; CA 2765382 A1 20101229; CA 2765382 C 20180807; CN 102459671 A 20120516; CN 102459671 B 20140319; DE 10734173 T1 20121206; DE 10734173 T8 20130425; EP 2449142 A1 20120509; EP 2449142 B1 20170503; US 11111562 B2 20210907; US 2011030856 A1 20110210; US 2011209801 A2 20110901; WO 2010149873 A1 20101229
DOCDB simple family (application)
FR 0903096 A 20090625; BR PI1011757 A 20100622; CA 2765382 A 20100622; CN 201080028657 A 20100622; DE 10734173 T 20100622; EP 10734173 A 20100622; FR 2010000455 W 20100622; US 82049510 A 20100622