Titanium base alloy for excellent formability and method of maki

Details Titanium base alloy for excellent formability and method of maki Titanium base alloy for excellent formability and method of maki

1992-05-08

1993-10-26

Roy, Upendra

Alloys or metallic compositions

Titanium base

Aluminum containing

148421, 148669, C22C 1400

Patent

active

052563693

ABSTRACT:
A Titanium base alloy with improved superplastic, hot workability, cold workability, and mechanical properties is provided. The alloy has about 4% Al and 2.5% V, with below 0.15% O, with 2% Fe and 2% Mo, 0.85.about.3.15 wt. % Mo, and at least one element from the group of Fe, Ni, Co, and Cr as beta stabilizing elements, and as contributing elements to the lowering of beta transus, finally to the improvement of the superplastic properties, and hot and cold workability, with the grain size of below 5 .mu.m. A method of making thereof is provided with the reheating temperature between beta transus minus 250.degree. C. and beta transus.
A method of superplastic forming thereof is provided with the heat treating temperature between beta transus minus 250.degree. C. and beta transus.

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