US 12,247,271 B2
Age-hardenable and highly formable aluminum alloys and methods of making the same
Aurèle Mariaux, Sierre (CH); Aude Celine Despois, Grone (CH); Milan Felberbaum, Lausanne (CH); and Guillaume Florey, Veyras (CH)
Assigned to NOVELIS INC., Atlanta, GA (US)
Filed by Novelis Inc., Atlanta, GA (US)
Filed on Feb. 6, 2024, as Appl. No. 18/433,819.
Application 18/433,819 is a continuation of application No. 17/516,453, filed on Nov. 1, 2021, granted, now 11,932,924.
Application 17/516,453 is a continuation of application No. 16/815,996, filed on Mar. 11, 2020, granted, now 11,203,801, issued on Dec. 1, 2021.
Claims priority of provisional application 62/817,713, filed on Mar. 13, 2019.
Prior Publication US 2024/0175109 A1, May 30, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. B32B 15/01 (2006.01); C22C 21/08 (2006.01); C22F 1/047 (2006.01)
CPC C22C 21/08 (2013.01) [B32B 15/016 (2013.01); C22F 1/047 (2013.01); Y10T 428/12764 (2015.01)] 17 Claims
OG exemplary drawing
 
1. An aluminum alloy, comprising:
from 1.30 wt. % to 1.50 wt. % Mg;
from 0.25 wt. % to 0.45 wt. % Si;
from 0.01 wt. % to 1.0 wt. % Fe;
from 0.01 wt. % to 0.5 wt. % Cu;
from 0.01 wt. % to 0.5 wt. % Mn;
from 0.005 wt. % to 0.3 wt. % Cr;
from 0.01 wt. % to 0.3 wt. % Ti;
up to 0.4 wt. % Zn;
up to 0.20 wt. % impurities; and remainder Al;
wherein the Mg and Si are present in a ratio of from 5:1 to 2:1 of Mg to Si by weight.