US 12,247,272 B2
Aluminum-cerium-copper alloys for metal additive manufacturing
Sumit Bahl, Knoxville, TN (US); Ryan R. Dehoff, Knoxville, TN (US); Hunter B. Henderson, Livermore, CA (US); Scott McCall, Livermore, CA (US); Ryan Ott, Ames, IA (US); Alexander J. Plotkowski, Knoxville, TN (US); Orlando Rios, Knoxville, TN (US); Amit Shyam, Knoxville, TN (US); Zachary C. Sims, Knoxville, TN (US); Kevin D. Sisco, Knoxville, TN (US); David Weiss, Manitowoc, WI (US); and Ying Yang, Knoxville, TN (US)
Assigned to UT-Battelle, LLC, Oak Ridge, TN (US); Lawrence Livermore National Security, LLC, Livermore, CA (US); Iowa State University Research Foundation, Inc., Ames, IA (US); and University of Tennessee Research Foundation, Knoxville, TN (US)
Filed by Sumit Bahl, Knoxville, TN (US); Ryan R. Dehoff, Knoxville, TN (US); Hunter B. Henderson, Livermore, CA (US); Scott McCall, Livermore, CA (US); Ryan Ott, Ames, IA (US); Alexander J. Plotkowski, Knoxville, TN (US); Orlando Rios, Knoxville, TN (US); Amit Shyam, Knoxville, TN (US); Zachary C. Sims, Knoxville, TN (US); Kevin D. Sisco, Knoxville, TN (US); David Weiss, Manitowoc, WI (US); and Ying Yang, Knoxville, TN (US)
Filed on Oct. 29, 2020, as Appl. No. 17/084,575.
Claims priority of provisional application 62/978,857, filed on Feb. 20, 2020.
Claims priority of provisional application 62/927,905, filed on Oct. 30, 2019.
Prior Publication US 2021/0130934 A1, May 6, 2021
Int. Cl. C22C 21/16 (2006.01); B33Y 10/00 (2015.01); B33Y 70/10 (2020.01); B33Y 80/00 (2015.01); C22C 21/14 (2006.01)
CPC C22C 21/16 (2013.01) [B33Y 70/10 (2020.01); C22C 21/14 (2013.01); B33Y 10/00 (2014.12); B33Y 80/00 (2014.12)] 22 Claims
OG exemplary drawing
 
1. A powder alloy composition, comprising:
6 wt % to 35 wt % cerium;
3 wt % to 35 wt % copper;
greater than 0.5 wt % to 3 wt % manganese;
0 wt % to 3 wt % iron;
0 wt % to 2 wt % magnesium;
0 wt % to 2 wt % zirconium;
0 wt % to 2 wt % nickel;
0 wt % to 5 wt % chromium;
0 wt % to 0.1 wt % silicon;
a balance of aluminum; and
wherein the cerium and the copper are independently present in the powder alloy composition in an amount sufficient to cause the formation of at least one intermetallic selected from Al8CeCu4, Al24Cu8Ce3Mn, Al10Cu7Ce2, Al11Ce3, or Al2Cu upon additively manufacturing the powder alloy composition.