Hybrid titanium alloy matrix composites

Details Hybrid titanium alloy matrix composites Hybrid titanium alloy matrix composites

1987-05-29

1989-03-28

Roy, Upendra

Stock material or miscellaneous articles

All metal or with adjacent metals

Composite; i.e., plural, adjacent, spatially distinct metal...

428607, 428608, 428614, B23K 2800

Patent

active

048163473

ABSTRACT:
A combination of unique properties of (i) high strength and stiffness at temperatures up to about of 1500.degree. F., (ii) good room temperature mechanical properties including good ductility and (iii) improved resistance to matrix cracking is achieved in a titanium structure by forming a hybrid titanium alloy matrix composite in which the matrix consists of layers of at least two alloys, i.e. a high temperature-resistant titanium aluminide alloy and a ductile, lower modulus titanium alloy, that are bonded metallurgically to each other in various embodiments. A reinforcing material in the form of filaments, fibers or wiskers, e.g. silicon carbide, can be embedded within either or both types of the titanium layers.

REFERENCES:
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patent: 3849080 (1974-11-01), Zechmeister
patent: 4010884 (1977-03-01), Rothman
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patent: 4499156 (1985-02-01), Smith et al.
patent: 4622270 (1986-11-01), Yamamura et al.
Petrova et al., in Ti and Ti-Alloys, vol. 3, ed.: Williams et al., Plenum, N.Y., 1976, p. 2419.

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