	US 12,473,615 B2
	Metallic matrix composite with high strength titanium aluminide alloy matrix and in situ formed aluminum oxide reinforcement
Scott Richard Holloway, Calgary (CA)
Assigned to PARKER LODGE HOLDINGS LLC, Elmhurst, IL (US)
Filed by PARKER LODGE HOLDINGS LLC, Elmhurst, IL (US)
Filed on Jan. 4, 2023, as Appl. No. 18/092,961.
Application 18/092,961 is a continuation of application No. 16/098,538, granted, now 11,572,609, previously published as PCT/CA2017/050542, filed on May 4, 2017.
Claims priority of provisional application 62/331,576, filed on May 4, 2016.
Prior Publication US 2023/0151463 A1, May 18, 2023
Int. Cl. C22C 32/00 (2006.01); B22F 3/23 (2006.01); C22C 1/04 (2023.01); C22C 1/047 (2023.01); C22C 1/05 (2023.01); C22C 1/053 (2023.01); C22C 14/00 (2006.01); C22C 21/00 (2006.01)

CPC C22C 32/0031 (2013.01) [B22F 3/23 (2013.01); C22C 1/0458 (2013.01); C22C 1/047 (2023.01); C22C 1/053 (2013.01); C22C 1/058 (2013.01); C22C 14/00 (2013.01); C22C 21/003 (2013.01); C22C 32/0036 (2013.01)]

17 Claims

1. A metallic matrix composite, comprising:

a titanium aluminide alloy matrix; and

an in situ formed aluminum oxide reinforcement,

wherein the titanium aluminide alloy matrix comprises at least two titanium aluminide phases,

wherein the atomic percentage of aluminum in the titanium aluminide alloy matrix ranges from 40.0% to 48.0%, and

wherein the titanium aluminide matrix comprises a titanium aluminide phase in the form of Ti₃Al, and the weight percentage of Ti₃Al in the titanium aluminide matrix ranges from 9.02% to 43.17%.