US 12,263,890 B2
High-forming multi-layer aluminum alloy package
Guillaume Florey, Veyras (CH); Cyrille Bezencon, Chermignon (CH); Corrado Bassi, Salgesch (CH); Juergen Timm, Steisslingen (DE); Jean-Francois Despois, Grone (CH); and Jacques Stadlin, Pont-de-la-Morge (CH)
Assigned to NOVELIS INC., Atlanta, GA (US)
Filed by Novelis Inc., Atlanta, GA (US)
Filed on May 15, 2020, as Appl. No. 16/875,472.
Application 16/875,472 is a division of application No. 15/288,088, filed on Oct. 7, 2016, granted, now 10,689,041.
Claims priority of provisional application 62/302,218, filed on Mar. 2, 2016.
Claims priority of provisional application 62/241,958, filed on Oct. 15, 2015.
Prior Publication US 2020/0277011 A1, Sep. 3, 2020
Int. Cl. C22C 21/00 (2006.01); B22D 7/00 (2006.01); B32B 15/01 (2006.01); B62D 29/00 (2006.01); C22C 21/02 (2006.01); C22C 21/08 (2006.01); C22F 1/04 (2006.01); C22F 1/043 (2006.01); C22F 1/047 (2006.01)
CPC B62D 29/008 (2013.01) [B22D 7/005 (2013.01); B32B 15/016 (2013.01); C22C 21/00 (2013.01); C22C 21/02 (2013.01); C22C 21/08 (2013.01); C22F 1/04 (2013.01); C22F 1/043 (2013.01); C22F 1/047 (2013.01)] 16 Claims
OG exemplary drawing
 
1. An aluminum alloy for a cladding layer, the aluminum alloy comprising 0.2 to 0.6 wt. % Fe, 0.06 to 0.25 wt. % Mn, up to 0.25 wt. % Si, up to 0.5 wt. % Cu, up to 1.5 wt. % Mg, up to 0.4 wt. % Zn, one or more additional elements selected from the group consisting of Ni, Ti, Co, Nb, Cr, V, Zr, Hf and Ta, up to 0.15 wt. % impurities, and Al; wherein the aluminum alloy comprises a total amount of Ni, V, and Co greater than 0.20 wt. %; wherein at least one of Ni or Co is present in an amount of 0.05 to 0.60 wt. %; wherein the aluminum alloy comprises grains having an average grain size from 10 microns to less than 30 microns;
wherein the aluminum alloy is subjected to hot rolling to produce a rolled aluminum alloy product;
wherein the rolled aluminum alloy product exhibits an elongation at break of at least 20% in directions longitudinal, transverse, and diagonal to a rolling direction of the rolled aluminum alloy product; and
wherein the rolled aluminum alloy product exhibits a bend angle of lower than 9° after being subjected to uniaxial pre-straining at 15% at 90° to the rolling direction and/or ageing at 180° C. for up to 10 hours.