	US 12,031,199 B2
	Aluminum alloy compositions, articles therefrom, and methods of producing articles therefrom
Samuel Tonneslan, El Segundo, CA (US); Erik Richman, Long Beach, CA (US); Brian Westveer, Melbourne, FL (US); Fritz Gruber, Redondo Beach, CA (US); Bishop Wright, Manhattan Beach, CA (US); and Eliana Fu, Henderson, NV (US)
Assigned to Relativity Space, Inc., Long Beach, CA (US)
Filed by Relativity Space, Inc., Long Beach, CA (US)
Filed on Sep. 2, 2022, as Appl. No. 17/929,558.
Claims priority of provisional application 63/325,528, filed on Mar. 30, 2022.
Prior Publication US 2023/0313345 A1, Oct. 5, 2023
Int. Cl. C22C 21/08 (2006.01); C22F 1/047 (2006.01)

CPC C22C 21/08 (2013.01) [C22F 1/047 (2013.01)]

26 Claims

1. An aluminum-magnesium-scandium alloy having a composition comprising:

Sc greater than or equal to 0.23 and less than or equal to 0.37 weight percent (wt%);

Zr greater than or equal to 0.11 and less than or equal to 0.19 wt%;

Mg greater than or equal to 4.1 and less than or equal to 5.6 wt%;

Mn greater than or equal to 0.2 and less than or equal to 1.0 wt%;

Ti greater than or equal to 0.05 and less than or equal to 0.15 wt%;

each of Si, Fe, Cu, and Zn less than or equal to 0.1 wt%;

with a balance of the composition being Al,

wherein the composition comprises at least one primary particle or domain of Al3(Sc, Zr) having at least one dimension of less than or equal to 20 μm.