Method to produce metal matrix composite articles from alpha-beta titanium alloys
AssigneeThe United States of America as represented by the Secretary of the Air Force
InventorsDaniel Eylon, Francis H. Froes
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Abstract
A method for fabricating an improved titanium alloy composite consisting of at least one high strength/high stiffness filament or fiber embedded in an alpha-beta titanium alloy matrix which comprises the steps of providing a rapidly-solidified foil made of an alpha-beta titanium alloy, fabricating a preform consisting of alternating layers of the rapidly-solidified foil and the filamentary material, and applying heat and pressure to consolidate the preform, wherein consolidation is carried out at a temperature below the beta-transus temperature of the alloy.
Claims12
A method for fabricating a titanium alloy composite consisting of at least one filamentary material selected from the group consisting of silicon carbide, silicon carbide-coated boron, boron carbide-coated boron, and silicon-coated silicon carbide, and an alpha-beta titanium alloy which comprises the steps of:
- (a) providing a rapidly solidified foil of said alloy;
- (b) fabricating a preform consisting of alternating layers of at least one of said filamentary materials and said foil;
- and
- (c) applying heat at a level about 100.degree. to 300.degree. C. below the beta transus temperature of said alloy and a pressure of about 1.5 to 15 ksi for about 0.2 to 24 hours to consolidate said preform.
Dependencies are inferred from the claim text.