Global Patent Index - EP 2112244 A1

EP 2112244 A1 20091028 - METHOD OF FORMING HIGH STRENGTH L12 ALUMINIUM ALLOYS

Title (en)

METHOD OF FORMING HIGH STRENGTH L12 ALUMINIUM ALLOYS

Title (de)

VERFAHREN ZUR HERSTELLUNG VON L12-ALUMINIUMLEGIERUNGEN MIT HOHER FESTIGKEIT

Title (fr)

PROCÉDÉ DE FABRICATION D'ALLIAGES D'ALUMINIUM L12 À HAUTE RÉSISTANCE

Publication

EP 2112244 A1 20091028 (EN)

Application

EP 09251028 A 20090331

Priority

US 14838708 A 20080418

Abstract (en)

High temperature heat treatable aluminum alloys that can be used at temperatures from about -420°F (-251°C) up to about 650°F (343°C) are described. The alloys are strengthened by dispersion of particles based on the L1 2 intermetallic compound Al 3 X. These alloys comprise aluminum, zinc, magnesium, at least one of scandium, erbium, thulium, ytterbium, and lutetium; and at least one of gadolinium, yttrium, zirconium, titanium, hafnium, and niobium. Copper is an optional alloying element.

IPC 8 full level

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 (applicant)

Citation (search report)

Designated contracting state (EPC)

DE GB

Designated extension state (EPC)

AL BA RS

DOCDB simple family (publication)

EP 2112244 A1 20091028; EP 2112244 B1 20190501; US 2009263273 A1 20091022

DOCDB simple family (application)

EP 09251028 A 20090331; US 14838708 A 20080418