EP 1492896 A1 20050105 - AL-ZN-MG-CU ALLOYS WELDED PRODUCTS WITH HIGH MECHANICAL PROPERTIES, AND AIRCRAFT STRUCTURAL ELEMENTS
Title (en)
AL-ZN-MG-CU ALLOYS WELDED PRODUCTS WITH HIGH MECHANICAL PROPERTIES, AND AIRCRAFT STRUCTURAL ELEMENTS
Title (de)
KNETPRODUKTE AUS EINER MIT HOHEN MECHANISCHEN EIGENSCHAFTEN AL-ZN-MG-CU-LEGIERUNG UND STRUKTURBAUTEILE FÜR EIN LUFTFAHRZEUG
Title (fr)
PRODUITS CORROYES EN ALLIAGES AL-ZN-MG-CU A TRES HAUTES CARACTERISTIQUES MECANIQUES, ET ELEMENTS DE STRUCTURE D AERONEF
Publication
Application
Priority
- FR 0301063 W 20030404
- FR 0204250 A 20020405
Abstract (en)
[origin: WO03085146A1] The invention concerns a rolled, extruded or stamped Al-Zn-Mg-Cu alloy product, characterized in that it contains (in wt. %): a) Zn 8.3 14.0 Cu 0.3 2.0 Mg 0.5 4.5 and preferably 0.5 3.6 Zr 0.03 0.15 Fe + Si < 0.25; b) at least one element selected from the group consisting of Sc, Hf, La, Ti, Ce, Nd, Eu, Gd, Tb, Dy, Ho, Er, Y, Yb, the content of each of said elements, if selected, ranging between 0.02 and 0.7 %; c) the rest being aluminium and unavoidable impurities, and in that it satisfies the following conditions d) Mg / Cu > 2.4 and e) (7.9 0.4 Zn) > (Cu + Mg) > (6.4 0.4 Zn), and preferably, Mg > 1.95 + 0.5 (Cu 2.3) + 0.16 (Zn - 6) + 1.9 (Si 0.04). The inventive products can be used in particular for manufacturing civil aircraft fuselage stiffeners.
IPC 1-7
IPC 8 full level
B64C 1/00 (2006.01); B64C 1/06 (2006.01); B64D 11/06 (2006.01); C22C 21/10 (2006.01); C22F 1/053 (2006.01)
CPC (source: EP US)
C22C 21/10 (2013.01 - EP US); C22F 1/053 (2013.01 - EP US)
Citation (search report)
See references of WO 03085146A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 03085146 A1 20031016; AT E415498 T1 20081215; AU 2003260003 A1 20031020; DE 03740569 T1 20050623; DE 60324903 D1 20090108; EP 1492896 A1 20050105; EP 1492896 B1 20081126; ES 2316779 T3 20090416; FR 2838135 A1 20031010; FR 2838135 B1 20050128; JP 2005530032 A 20051006; US 2005072497 A1 20050407; US 2006182650 A1 20060817
DOCDB simple family (application)
FR 0301063 W 20030404; AT 03740569 T 20030404; AU 2003260003 A 20030404; DE 03740569 T 20030404; DE 60324903 T 20030404; EP 03740569 A 20030404; ES 03740569 T 20030404; FR 0204250 A 20020405; JP 2003582321 A 20030404; US 39866406 A 20060406; US 40661003 A 20030404