Wrought gamma titanium aluminide alloys modified by chromium, bo

Details Wrought gamma titanium aluminide alloys modified by chromium, bo Wrought gamma titanium aluminide alloys modified by chromium, bo

1991-12-02

1993-04-27

Roy, Upendra

Metal treatment

Stock

Titanium, zirconium, or hafnium base

148670, 420418, 420421, C22C 1400

Patent

active

052058751

ABSTRACT:
A TiAl composition is prepared to have high strength and to have improved ductility by altering the atomic ratio of the titanium and aluminum to have what has been found to be an effective aluminum concentration and by addition of chromium, boron, and niobium according to the approximate formula Ti-Al.sub.46-48 Cr.sub.2 Nb.sub.2 B.sub.0.1-0.2. The composition is preferably prepared by casting, homogenization at a high temperature, and forging the homogenized casting.

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