EP 2888382 A1 20150701 - ALUMINIUM ALLOY STRIP WHICH IS RESISTANT TO INTERCRYSTALLINE CORROSION AND METHOD FOR PRODUCING SAME
Title (en)
ALUMINIUM ALLOY STRIP WHICH IS RESISTANT TO INTERCRYSTALLINE CORROSION AND METHOD FOR PRODUCING SAME
Title (de)
GEGEN INTERKRISTALLINE KORROSION BESTÄNDIGES ALUMINIUMLEGIERUNGSBAND UND VERFAHREN ZU SEINER HERSTELLUNG
Title (fr)
BANDE D'ALLIAGE EN ALUMINIUM RÉSISTANT À LA CORROSION INTERCRISTALLINE ET SON PROCÉDÉ DE FABRICATION
Publication
Application
Priority
- EP 12181356 A 20120822
- EP 2013067484 W 20130822
- EP 13756051 A 20130822
Abstract (en)
[origin: WO2014029853A1] The invention relates to an aluminum alloy strip composed of an AA 5xxx-type aluminum alloy containing at least 4 wt.% of Mg in addition to Al and inevitable impurities. The aim of the invention is to design an AlMg aluminum alloy strip which is resistant to intergranular corrosion also at high strength and even when the alloy contains at least 4 wt.% of Mg. According to a first teaching of the present invention, said aim is achieved by an aluminum alloy strip that has a recrystallized structure, the grain size (KG) of which in mum has the following relation to the Mg content (c_Mg) in wt.%: KG >= 22 + 2*c_Mg, the aluminum alloy of the aluminum alloy strip having the following composition in wt.%: Si <= 0.2 %, Fe <= 0.35 %, 0.04 % <= Cu <= 0.08 %, 0.2 % <= Mn <= 0.5 %, 4.35 % <= Mg <= 4.8 %, Cr <= 0.1 %, Zn < 0.25 %, Ti <= 0.1 %, the remainder consisting of Al and inevitable impurities, each of which amounts to no more than 0.05 wt.% and the total amount of which amounts to no more than 0.15 wt.%.
IPC 8 full level
C22C 21/00 (2006.01)
CPC (source: EP RU US)
C22C 21/06 (2013.01 - RU US); C22C 21/08 (2013.01 - EP US); C22F 1/047 (2013.01 - EP US)
Citation (search report)
See references of WO 2014029853A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
WO 2014029853 A1 20140227; CA 2882691 A1 20140227; CA 2882691 C 20171107; CN 104781430 A 20150715; CN 110592441 A 20191220; EP 2888382 A1 20150701; EP 2888382 B1 20161123; ES 2613857 T3 20170526; JP 2016504483 A 20160212; JP 6270844 B2 20180131; KR 101803520 B1 20171130; KR 20150065678 A 20150615; PT 2888382 T 20170210; RU 2015110064 A 20161010; RU 2606664 C2 20170110; US 10550456 B2 20200204; US 2015159251 A1 20150611; US 2016273084 A2 20160922
DOCDB simple family (application)
EP 2013067484 W 20130822; CA 2882691 A 20130822; CN 201380044171 A 20130822; CN 201910917217 A 20130822; EP 13756051 A 20130822; ES 13756051 T 20130822; JP 2015527925 A 20130822; KR 20157007193 A 20130822; PT 13756051 T 20130822; RU 2015110064 A 20130822; US 201514625071 A 20150218