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US 2026/0015701 A1Published application
Chromium coated continous fiber reinforced tiantinum metal matrix composite and the method of making thereof
AssigneeSpirit AeroSystems, Inc.
InventorsRahbar Nasserrafi, Gerald Hicks
Life of this patent
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Abstract
The present disclosure relates to a titanium metal matrix composite with chromium coated fiber reinforcement and method of manufacturing thereof. The formulations and methods disclosed herein enable the manufacturing process to take place outside of specialized vacuum furnaces.
Claims15
A metal matrix composite comprising:
- a fiber reinforcement comprising a fiber reinforcement coated with chromium;
- and
- a titanium alloy matrix comprising:
- from about 70 wt. % to about 85 wt. % Titanium (Ti),
- from about 0.05 wt. % to about 0.25 wt. % oxygen (O);
- from about 0.1 wt. % to about 0.4 wt. % carbon (C);
- not greater than 0.03 wt. %. nitrogen (N);
- a beta stabilizing element;
- and
- One or more of:
- no greater than 5 wt. % aluminum (Al);
- from about 5 to about 19 wt. % tin (Sn);
- no greater than 5 wt. % antimony (Sb);
- and
- no greater than 2 wt. % bismuth (Bi);
- Wherein the beta stabilizing element is one of:
- from about 1 to about 3 wt. total % of an element selected from the group consisting of molybdenum (Mo), Tantalum (Ta), vanadium (V), chromium (Cr), iron (Fe), manganese (Mn), or any combination thereof;
- or
- from about 1 to about 6 wt. % niobium (Nb).
16 more elements
A method of preparing the metal matrix comprising:
- coating a fiber reinforcement with chromium;
- layering a titanium alloy on at least one side of the coated carbon fiber;
- and
- heating the layers to a temperature of from about 1600° F. to about 1800° F. such that the layers fully diffusion bond and consolidate to form a titanium alloy matrix.
1 more element
A method of preparing the metal matrix composite comprising:
- coating a fiber reinforcement with chromium;
- layering a low melting element layer and titanium alloy on at least one side of the coated fiber reinforcement such that the low melting element is layered between the titanium alloy and the fiber reinforcement;
- heating the layers to a temperature ranging from about 400° F. to about 800° F. to melt the low melting elements;
- applying pressure to the layers such that the melted low melting elements fill the gaps between the titanium alloy and the coated fiber reinforcement;
- cooling the layers such that the low melting element solidifies, and the titanium alloy and the coated fiber reinforcement are soldered together forming a soldered matrix;
- and
- heating the soldered matrix to a temperature ranging from about 1600° F. to about 1800° F. such that the layers of the soldered matrix fully diffusion bond and consolidate to form a titanium alloy matrix.
4 more elements
Dependencies are inferred from the claim text.