US2025313922A1PendingUtilityA1
Aluminum alloy with improved strength and ductility
Est. expiryMay 18, 2042(~15.8 yrs left)· nominal 20-yr term from priority
C22F 1/047C22C 21/08
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Claims
Abstract
The present disclosure concerns an aluminum alloy with improved strength and ductility. The aluminum alloy composition of the present disclosure achieves a superior strength/ductility combination compared to existing Al—Mg—Si alloys. The aluminum alloy comprises, in weight percent: 0.45-0.60 Si; ≤0.3 Fe; 0.30-0.65 Cu; 0.71-0.90 Mg; ≤0.20 Mn; ≤0.12 Cr; and the balance being aluminum and inevitable impurities.
Claims
exact text as granted — not AI-modified1 . An aluminum alloy comprising, in weight percent:
0.45-0.60 Si; ≤0.3 Fe; 0.30-0.65 Cu; 0.71-0.90 Mg; ≤0.20 Mn; ≤0.12 Cr; and the balance being aluminum and inevitable impurities.
2 . The aluminum alloy according to claim 1 , wherein the inevitable impurities comprise less than 0.1 wt. % of the aluminum alloy and each inevitable impurity is present at a maximum of 0.05 wt. %.
3 . The aluminum alloy of claim 1 , wherein the inevitable impurities comprise ≤0.05 wt. % Ni.
4 . The aluminum alloy of claim 1 , wherein the inevitable impurities comprise ≤0.05 wt. % Zn.
5 . The aluminum alloy of claim 1 , wherein the inevitable impurities comprise ≤ 0 . 05 wt. % Ti.
6 . The aluminum alloy of claim 1 , wherein the inevitable impurities comprise ≤0.05 wt. % B.
7 . The aluminum alloy claim 1 , wherein the inevitable impurities comprise ≤0.05 wt. % V.
8 . The aluminum alloy of claim 1 , comprising 0.50-0.59 wt. % Si.
9 . The aluminum alloy of claim 1 , comprising ≤0.25 wt. % Fe.
10 . The aluminum alloy of claim 1 , comprising 0.36-0.61 wt. % Cu.
11 . The aluminum alloy of claim 1 , comprising 0.74-0.85 wt. % Mg.
12 . The aluminum alloy of claim 1 , comprising at least 0.10 wt. % Fe.
13 . The aluminum alloy of claim 1 , comprising ≤0.05 wt. % Mn.
14 . The aluminum alloy of claim 1 , comprising ≤0.05 wt. % Cr.
15 . The aluminum alloy of claim 1 , wherein at least one of Cr or Mn is at least 0.05 wt. %.
16 . The aluminum alloy of claim 1 , wherein at least one of Cr or Mn is more than 0.05 wt. %.
17 . The aluminum alloy of claim 1 , wherein the combined Cr and Mn concentration is at least 0.15 wt. %.
18 . The aluminum alloy of claim 1 , further comprising a grain refiner.
19 . An aluminum product comprising the aluminum alloy of claim 1 .
20 . The aluminum product of claim 19 having a recrystallized grain structure.Join the waitlist — get patent alerts
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