Thermomechanically processed structural elements of titanium alu

Details Thermomechanically processed structural elements of titanium alu Thermomechanically processed structural elements of titanium alu

1990-12-21

1993-04-20

Roy, Upendra

Alloys or metallic compositions

Titanium base

Aluminum containing

148421, 148670, 420417, C22C 1400

Patent

active

052040585

ABSTRACT:
A method for providing improved ductility in a gamma titanium aluminide is taught. The method involves adding inclusions of boron to the titanium aluminide containing chromium, carbon, and niobium and thermomechanically working the casting. Boron additions are made in concentrations between 0.5 and 2 atomic percent. Fine grain equiaxed microstructure is found from solidified melt. Property improvements are achieved by the thermomechanical processing.

REFERENCES:
patent: 5080860 (1992-01-01), Huang
patent: 5082624 (1992-01-01), Huang
Fukutomi et al Z. Metallkde 81 (Apr. 1990) 272.

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