Alloys or metallic compositions – Ferrous – Processes
Patent
1988-02-17
1990-04-10
Rutledge, L. Dewayne
Alloys or metallic compositions
Ferrous
Processes
420590, 419 45, C22C 109
Patent
active
049159020
ABSTRACT:
The present invention relates to the formation of whisker reinforced metal matrix composites in which complex boride or carbide whiskers are distributed throughout a metal, metal alloy, or intermetallic matrix. Exemplary complex boride whiskers include TiNbB, TiTaB, TiVB, NbHfB, and TiNbMoB. Exemplary complex carbide whiskers include TiNbC, TiVC, TiZrC, TiHfC, and TiTaC. A method for the in-situ formation of complex boride and complex carbide whiskers within metallic matrices is disclosed which involves reacting a mixture of individual complex ceramic-forming constituents in the presence of a metal to precipitate the desired complex ceramic whiskers in a metal matrix.
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Brupbacher John M.
Christodoulou Leontios
Nagle Dennis C.
Chin Gay
Martin Marietta Corporation
Mylius Herbert W.
Rutledge L. Dewayne
Wyszomierski George
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