EP 0162096 B1 19870930 - ALUMINIUM ALLOYS CONTAINING LITHIUM, MAGNESIUM AND COPPER
Title (en)
ALUMINIUM ALLOYS CONTAINING LITHIUM, MAGNESIUM AND COPPER
Publication
Application
Priority
FR 8319070 A 19831124
Abstract (en)
[origin: WO8502416A1] Aluminium alloys containing essentially additions of Li, Mg and Cu, and optionally minor additions of Cr, Zr, Ti, Mn which have high specific mechanical characteristics, a low density and a good corrosion resistance. The alloys according to the invention contain in percentage by weight: 1.8 to 3.5 of Li; 1.4 to 6.0 Mg; 0.2 to 1.6 of Cu with Mg-Cu >= 1.5; Cr up to 0.3; Mn up to 1; Zr up to 0.2; Ti up to 0.1 and/or Be up to 0.02, Fe up to 0.20; Si up to 0.12; Zn up to 0.35. The homogenizing and soluting treatments must be sufficiently carried out to dissolve the quaternary intermetal phases (Al, Li, Mg, Cu) of a grain size larger than 5 mu m. These alloys present a mechanical characteristics/density compromise higher than that of known Al Cu Mg alloys and those containing Li.
IPC 1-7
IPC 8 full level
C22C 21/00 (2006.01); C22C 21/06 (2006.01); C22F 1/04 (2006.01)
CPC (source: EP US)
C22C 21/00 (2013.01 - EP US); C22C 21/06 (2013.01 - EP US)
Citation (examination)
EP 0142261 A1 19850522 - ALCAN INT LTD [CA]
Designated contracting state (EPC)
AT BE CH DE FR GB LI NL SE
DOCDB simple family (publication)
WO 8502416 A1 19850606; BR 8407153 A 19851008; CA 1253362 A 19890502; DE 3466560 D1 19871105; EP 0162096 A1 19851127; EP 0162096 B1 19870930; ES 537895 A0 19850916; ES 8600419 A1 19850916; IL 73619 A0 19850228; IL 73619 A 19871130; IT 1209600 B 19890830; IT 8423712 A0 19841123; JP S60502159 A 19851212; US 4758286 A 19880719
DOCDB simple family (application)
FR 8400273 W 19841122; BR 8407153 A 19841122; CA 468547 A 19841123; DE 3466560 T 19841122; EP 85900122 A 19841122; ES 537895 A 19841123; IL 7361984 A 19841125; IT 2371284 A 19841123; JP 50439384 A 19841122; US 75219485 A 19850624