Aluminum alloy components from additive manufacturing
AssigneeHRL Laboratories, LLC
InventorsJohn H. MARTIN, Brennan YAHATA
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Abstract
Some variations provide an additively manufactured aluminum alloy comprising from 84.5 wt % to 92.1 wt % aluminum; from 1.1 wt % to 2.1 wt % copper; from 1.8 wt % to 2.9 wt % magnesium; from 4.5 wt % to 6.1 wt % zinc; and from 0.5 wt % to 2.8 wt % zirconium. The additively manufactured aluminum alloy is in the form of a three-dimensional component. The zirconium functions as a grain-refiner element within the additively manufactured aluminum alloy. The additively manufactured aluminum alloy may be characterized by an average grain size of less than 10 microns. The additively manufactured aluminum alloy may have a substantially crack-free microstructure with equiaxed grains.
Claims20
An additively manufactured aluminum alloy comprising:
- from 84.5 wt % to 92.1 wt % aluminum;
- from 1.1 wt % to 2.1 wt % copper;
- from 1.8 wt % to 2.9 wt % magnesium;
- from 4.5 wt % to 6.1 wt % zinc;
- and
- from 0.5 wt % to 2.8 wt % zirconium.
Dependencies are inferred from the claim text.