EP 1359232 B2 20140312 - Method of improving fracture toughness in aluminium-lithium alloys
Title (en)
Method of improving fracture toughness in aluminium-lithium alloys
Title (de)
Verfahren zur Erhöhung der Bruchzähigkeit in Aluminium-Lithium-Legierungen
Title (fr)
Procédé servant a améliorer la ténacité d'alliages d'aluminium et de lithium
Publication
Application
Priority
- EP 98903777 A 19980130
- US 3632997 P 19970131
Abstract (en)
[origin: EP1359232A2] An aluminum-lithium alloy is processed with controlled amounts of copper, lithium, manganese and zirconium to produce a product having improved fracture toughness in the short longitudinal (S-L) direction and acceptable strength in the short transverse (ST) direction.
IPC 8 full level
C22C 21/00 (2006.01); C22C 21/12 (2006.01); C22F 1/057 (2006.01)
CPC (source: EP)
C22C 21/12 (2013.01); C22F 1/057 (2013.01)
Citation (opposition)
Opponent :
"Teal Sheets, Registration Record Series, International Alloy Designations and Chemical Composition Limits for Wrought Aluminum and Wrought Aluminum Alloys.", THE ALUMINIUM ASSOCIATION, April 2004 (2004-04-01), pages 3 - 13
Designated contracting state (EPC)
AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
WO 9833947 A1 19980806; AT E250675 T1 20031015; AT E346963 T1 20061215; DE 69818448 D1 20031030; DE 69818448 T2 20040729; DE 69836569 D1 20070111; DE 69836569 T2 20080103; DE 69836569 T3 20140731; EP 0981653 A1 20000301; EP 0981653 A4 20000517; EP 0981653 B1 20030924; EP 1359232 A2 20031105; EP 1359232 A3 20040102; EP 1359232 B1 20061129; EP 1359232 B2 20140312; EP 1359232 B9 20140910; ES 2278093 T3 20070801; ES 2278093 T5 20140716
DOCDB simple family (application)
US 9801584 W 19980130; AT 03015053 T 19980130; AT 98903777 T 19980130; DE 69818448 T 19980130; DE 69836569 T 19980130; EP 03015053 A 19980130; EP 98903777 A 19980130; ES 03015053 T 19980130