EP 0391815 B1 19950125 - Aluminium-based alloy with a high modulus and an increased mechanical strength and process for production.
Title (en)
Aluminium-based alloy with a high modulus and an increased mechanical strength and process for production.
Title (de)
Legierung auf Aluminiumbasis mit einem hohen Modul und mit einer erhöhten mechanischen Festigkeit und Verfahren zur Herstellung.
Title (fr)
Alliage à base d'A1 à haut module et à resistance mécanique élevée et procédé d'obtention.
Publication
Application
Priority
FR 8904700 A 19890405
Abstract (en)
[origin: EP0391815A1] Al-based alloys of the 7000 series which have a high modulus (E >/= 74 GPa), a high mechanical strength (R0.2 >/= 530 MPa in the lengthwise direction), a good tenacity (KIC, lengthwise direction > 20 MPa 2ROOT m) and a good corrosion resistance under (O pressure >/= 250 MPa in the short transverse direction, lifetime >/= 30 days - ASTM Standard G 38-73). <??>The alloy according to the invention corresponds to the following weight composition: from 5.5 to 8.45% of Zr from 2 to 3.5% Mg from 0.5 to 2.5% Cu up to 0.5% Fe up to 0.5% Si other elements </= 0.05% each and up to 0.15% in all with 0.1 </= Zr </= 0.5% 0.3 </= Cr </= 0.6% 0.3 </= Mn </= 1.1% <??>It is preferably produced by the following process: a) a massive body which has the composition claimed above is formed by spray-deposition, b) this body is converted into a wrought product between 300 and 450 DEG C and then optionally when cold c) the wrought product is heat-treated by dissolving, quenching and annealing to a T6 or T7 state. <IMAGE>
IPC 1-7
IPC 8 full level
C22C 1/04 (2006.01); C22C 21/10 (2006.01); C22F 1/00 (2006.01); C22F 1/053 (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); Y10S 428/937 (2013.01 - EP US); Y10T 428/12486 (2015.01 - EP US); Y10T 428/12799 (2015.01 - EP US)
Citation (examination)
EP 0375571 A1 19900627 - PECHINEY RECHERCHE [FR]
Designated contracting state (EPC)
AT BE CH DE ES FR GB GR IT LI LU NL SE
DOCDB simple family (publication)
EP 0391815 A1 19901010; EP 0391815 B1 19950125; AT E117734 T1 19950215; BR 9001576 A 19910430; CA 2013270 A1 19901005; DD 293144 A5 19910822; DE 69016241 D1 19950309; DE 69016241 T2 19950524; FR 2645546 A1 19901012; FR 2645546 B1 19940325; HU 901848 D0 19900828; HU T57281 A 19911128; IL 93904 A0 19901223; JP H032345 A 19910108; NO 901415 D0 19900328; NO 901415 L 19901008; US 5047092 A 19910910; US 5110372 A 19920505
DOCDB simple family (application)
EP 90420166 A 19900403; AT 90420166 T 19900403; BR 9001576 A 19900404; CA 2013270 A 19900329; DD 33915290 A 19900328; DE 69016241 T 19900403; FR 8904700 A 19890405; HU 184890 A 19900327; IL 9390490 A 19900327; JP 9003590 A 19900404; NO 901415 A 19900328; US 50390390 A 19900404; US 67492291 A 19910326