EP 0256449 B1 19900516 - POWDER-METALLURGICAL MANUFACTURE OF WORK PIECES FROM A HEAT-RESISTING ALUMINIUM ALLOY
Title (en)
POWDER-METALLURGICAL MANUFACTURE OF WORK PIECES FROM A HEAT-RESISTING ALUMINIUM ALLOY
Publication
Application
Priority
CH 323286 A 19860812
Abstract (en)
[origin: US4737339A] A workpiece consisting of a heat-resistant aluminum alloy is produced by a powder-metallurgical process wherein an alloy containing 8 to 14% by weight Fe, 0.5 to 2% by weight V and 0.2 to 1% by weight Mn is melted, the melt is cooled in a gas stream at a rate of at least 105 DEG C/s and is atomized to form particles having a diameter of 1 to 40 mu m, whereupon the powder is consolidated a temperature of 350 DEG to 450 DEG C. at a pressure of 2000 to 6000 bar, to form a pressed article. In this process, the intermetallic compound Al6Fe stabilized by Mn occurs in fine distribution. This dispersoid imparts high ductility and toughness to the grain.
IPC 1-7
IPC 8 full level
B22F 9/00 (2006.01); B22F 9/08 (2006.01); C22C 1/04 (2006.01)
CPC (source: EP US)
B22F 9/008 (2013.01 - EP US); B22F 9/082 (2013.01 - EP US); C22C 1/0416 (2013.01 - EP US)
Designated contracting state (EPC)
CH DE FR GB LI SE
DOCDB simple family (publication)
EP 0256449 A1 19880224; EP 0256449 B1 19900516; CH 673242 A5 19900228; DE 3762756 D1 19900621; DK 415787 A 19880213; DK 415787 D0 19870810; JP S6347343 A 19880229; NO 873365 D0 19870811; NO 873365 L 19880215; US 4737339 A 19880412
DOCDB simple family (application)
EP 87111462 A 19870807; CH 323286 A 19860812; DE 3762756 T 19870807; DK 415787 A 19870810; JP 20168687 A 19870812; NO 873365 A 19870811; US 8401787 A 19870811