EP 0375571 B1 19930623 - PROCESS FOR THE PREPARATION BY SPRAY DEPOSITS OF ALUMINIUM ALLOYS OF THE 7000 SERIES, AND DISCONTINUOUSLY REINFORCED COMPOSITE MATERIALS HAVING THESE HIGH STRENGTH, HIGHLY DUCTILE ALLOYS AS A MATRIX
Title (en)
PROCESS FOR THE PREPARATION BY SPRAY DEPOSITS OF ALUMINIUM ALLOYS OF THE 7000 SERIES, AND DISCONTINUOUSLY REINFORCED COMPOSITE MATERIALS HAVING THESE HIGH STRENGTH, HIGHLY DUCTILE ALLOYS AS A MATRIX
Publication
Application
Priority
FR 8817044 A 19881219
Abstract (en)
[origin: EP0375571A1] The invention relates to a process for obtaining an Al alloy of the 7000 series (Al-Zn-Cu-Mg) of high mechanical strength and good ductility by spray deposition; the process is aimed at obtaining Al alloys having a breaking load of >/= 800 MPa and an elongation greater than or equal to 5%, or obtaining these same alloys reinforced with ceramic particles. <??>The invention accordingly consists in: 1. forming, by spray deposition, a massive alloy of the following composition by weight: Zn from 8.5 to 15%; Mg from 2.0 to 4.0%; Cu from 0.5 to 2.0%; at least one of the following 3 elements: Zr from 0.05 to 0.8%; Mn from 0.05 to 1.0%; Cr from 0.05 to 0.8%, with Zr + Mn + Cr </= 1.4%; Fe up to 0.5%; Si up to 0.5%; other elements </= 0.05% each, </= 0.15% in total; remainder Al. 2. hot transforming of the body thus obtained at between 300 and 450 DEG C and optionally in the cold and 3. treating the product thus obtained by dissolution, quenching and annealing.
IPC 1-7
IPC 8 full level
C22C 1/00 (2006.01); C22C 1/02 (2006.01); C22C 1/04 (2006.01); C22C 1/10 (2006.01); C22C 21/10 (2006.01); C22F 1/00 (2006.01); C22F 1/053 (2006.01); C23C 4/08 (2016.01); C23C 4/18 (2006.01)
CPC (source: EP US)
C22C 1/0416 (2013.01 - EP US); C22C 21/10 (2013.01 - EP US); C22F 1/053 (2013.01 - EP US); C23C 4/18 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE CH DE ES FR GB IT LI NL SE
DOCDB simple family (publication)
EP 0375571 A1 19900627; EP 0375571 B1 19930623; AT E90976 T1 19930715; AU 4681689 A 19900621; AU 615366 B2 19910926; BR 8906543 A 19900904; CA 2005747 A1 19900619; CA 2005747 C 19960409; DD 290024 A5 19910516; DE 68907331 D1 19930729; DE 68907331 T2 19931021; FR 2640644 A1 19900622; FR 2640644 B1 19910201; HU 896605 D0 19900228; HU T53681 A 19901128; IL 92727 A0 19900917; JP H02258935 A 19901019; NO 895100 D0 19891218; NO 895100 L 19900620; TR 24392 A 19910901; US 4995920 A 19910226
DOCDB simple family (application)
EP 89420497 A 19891218; AT 89420497 T 19891218; AU 4681689 A 19891218; BR 8906543 A 19891218; CA 2005747 A 19891218; DD 33575089 A 19891215; DE 68907331 T 19891218; FR 8817044 A 19881219; HU 660589 A 19891214; IL 9272789 A 19891215; JP 32936589 A 19891219; NO 895100 A 19891218; TR 790 A 19900102; US 45052589 A 19891214