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US 12,649,961 B2Granted
2XXX aluminum alloys
AssigneeArconic Technologies LLC
InventorsPaul E. Magnusen, Lynette M. Karabin, Francine S. Bovard, Julien Boselli
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Abstract
New 2xxx aluminum alloys are disclosed. The new 2xxx aluminum alloys generally include from 0.08 to 0.20 wt. % Ti. The new 2xxx aluminum alloys may realize an improved combination of two or more of strength, fracture toughness, elongation, and corrosion resistance, for instance.
Claims19
A 2xxx aluminum alloy comprising:
- from 0.10 to 0.13 wt. % Ti;
- from 4.8 to 5.0 wt. % Cu;
- from 0.49 to 1.0 wt. % Zn;
- from 0.30 to 0.40 wt. % Mn;
- from 0.30 to 0.50 wt. % Mg;
- from 0.30 to 0.40 wt. % Ag;
- from 0.07 to 0.12 wt. % Zr;
- up to 0.15 wt. % Fe;
- up to 0.10 wt. % Si;
- up to 0.05 wt. % Cr;
- up to 0.05 wt. % V;
- and
- up to 0.05 wt. % Li;
- the balance being aluminum, incidental elements and impurities,
- wherein the 2xxx aluminum alloy includes not greater than 0.15 wt. %, in total, of the impurities,
- wherein the 2xxx aluminum alloy includes not greater than 0.05 wt. % of each of the impurities, and
- wherein the wrought product realizes a tensile yield strength (LT) of at least 390 MPa.
14 more elements
Dependencies are inferred from the claim text.