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US 12,492,453 B2Granted
High-performance Al—Zn—Mg—Zr base aluminum alloys for welding and additive manufacturing
AssigneeNanoAL LLC
InventorsJoseph R. Croteau, Nhon Q. Vo, Joshua P. Dorn
Life of this patent
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Abstract
Aluminum-zinc-magnesium base alloys that comprise a transition metal and/or a rare earth metal are provided. The disclosed aluminum alloys are suitable for use in additive manufacturing and welding processes due to their mechanical properties and thermal stability. Methods for producing the disclosed alloys, as well as methods of manufacturing aluminum alloy components, are also provided.
Claims31
A 7000-series aluminum alloy comprising:
- 10 to 12% by weight zinc;
- 1 to 4% by weight magnesium;
- 1.2 to 2% by weight of a transition metal, wherein the transition metal is zirconium;
- 0 to 3% by weight copper;
- and
- aluminum as the remainder;
- wherein the alloy does not comprise any intentionally added scandium, and wherein impurities of manganese, chromium, silicon, and iron combined are less than or equal to 0.5% by weight.
4 more elements
A 7000-series aluminum alloy selected from the group consisting of:
- a) Al-12Zn-2.6Mg-1.4Zr;
- b) Al-11Zn-3.2Mg-1.4Zr;
- c) Al-10Zn-3.0Mg-1.2Zr;
- and
- d) Al-11Zn-2.5Mg-1Cu-1.5Zr,
- wherein impurities of manganese, chromium, silicon, and iron combined are less than or equal to 0.5% by weight.
3 more elements
A 7000-series aluminum alloy comprising:
- 10 to 12% by weight zinc;
- 1 to 4% by weight magnesium;
- 1.2 to 2% by weight zirconium;
- 1 to 4% by weight copper;
- and
- aluminum as the remainder;
- wherein the alloy does not comprise any intentionally added scandium, and
- wherein impurities of manganese, chromium, silicon, and iron combined are less than or equal to about 0.5% by weight.
5 more elements
Dependencies are inferred from the claim text.