US 12,404,568 B2
High temperature lightweight Al—Fe—Si based alloys
Sujeily Soto Medina, Gainesville, FL (US); Michele V. Manuel, Gainesville, FL (US); Richard Hennig, Gainesville, FL (US); Lilong Zhu, Gainesville, FL (US); and Biswas Rijal, Gainesville, FL (US)
Assigned to University of Florida Research Foundation, Inc., Gainesville, FL (US)
Filed by University of Florida Research Foundation, Inc., Gainesville, FL (US)
Filed on Oct. 30, 2023, as Appl. No. 18/497,345.
Application 18/497,345 is a continuation of application No. 16/933,581, filed on Jul. 20, 2020, granted, now 11,840,746.
Claims priority of provisional application 62/929,274, filed on Nov. 1, 2019.
Claims priority of provisional application 62/876,202, filed on Jul. 19, 2019.
Prior Publication US 2024/0287652 A1, Aug. 29, 2024
Int. Cl. C22C 21/00 (2006.01); C22F 1/04 (2006.01)
CPC C22C 21/00 (2013.01) [C22F 1/04 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A Al—Fe—Si—Mn quaternary intermetallic compound produced by the process comprising,
(a) melting Al, Fe, Si, and Mn to produce a first alloy, and
(b) annealing the first alloy at a temperature of 750° C. to 850° C. from 1 hour to 600 hours. wherein
Al is in the amount of from about 60.0 atomic percent to about 70.0 atomic percent,
Fe is in the amount of from about 13.0 atomic percent to about 30.0 atomic percent,
Si is in the amount of from about 11.0 atomic percent to about 13.0 atomic percent,
Mn is in the amount of from about 3.5 atomic percent to about 14.0 atomic percent, and
the Al—Fe—Si—Mn quaternary intermetallic compound is 100% the T11 phase.