Creep resistant gamma titanium aluminide

Details Creep resistant gamma titanium aluminide Creep resistant gamma titanium aluminide

1995-07-24

1997-11-11

Sheehan, John

Metal treatment

Stock

Titanium, zirconium, or hafnium base

420418, 420421, C22C 1400

Patent

active

056859244

ABSTRACT:
Creep resistant gamma titanium alumninide comprising titanium in the range of about 55 to about 71 weight % and aluminum in the range of 29 to about 35 weight % by virtue of including oxygen intentionally in the composition in an effective amount to significantly increase the high temperature creep resistance of the alloy. The composition can include greater than about 800 ppm up to about 1500 ppm oxygen to this end.

REFERENCES:
patent: 2703278 (1955-03-01), Finlay et al.
patent: 2750271 (1956-06-01), Lyon et al.
patent: 2819194 (1958-01-01), Herres et al.
patent: 4878966 (1989-11-01), Alheritiere et al.
patent: 5350466 (1994-09-01), Larsen, Jr. et al.

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