Process for producing .gamma. and .beta. dual phase TiAl based i

Details Process for producing .gamma. and .beta. dual phase TiAl based i Process for producing .gamma. and .beta. dual phase TiAl based i

1993-03-05

1994-09-20

Roy, Upendra

Alloys or metallic compositions

Titanium base

Chromium or molybdenum containing

148421, 148671, 420417, 420419, C22C 1400

Patent

active

053487028

ABSTRACT:
This invention relates to TiAl based intermetallic compound alloy and process for producing; the object of this invention is to improve high temperature deformability. The alloy comprises basic components: Ti.sub.y AlCr.sub.x, wherein 1%.ltoreq.X.ltoreq.5%, 47.5%.ltoreq.Y.ltoreq.52%, and X+2Y.gtoreq.100%, and comprises a fine-grain structure with a .beta. phase precipitated on a grain boundary of equiaxed .gamma. grain having grain size of less than 30 .mu.m, and possessing a superplasticity such that the strain rate sensitivity factors (m value) is 0.40 or more and tensile elongation is 400% or more tested at 1200.degree. C. and a strain rate of 5.times.10.sup.-4 S.sup.-1.

REFERENCES:
patent: 4842819 (1989-06-01), Huang et al.
patent: 5028277 (1991-07-01), Mizoguchi et al.
patent: 5028491 (1991-07-01), Huang et al.
patent: 5190603 (1993-03-01), Nazmy et al.
Z. Metallkde, vol. 81, H. 11, Nov. 1990, W. Wunderlich et al. pp. 802-808.
Metallurgical Transactions A, vol. 19A, Oct. 1988, pp. 2445-2455, D. Vujic et al.
Abstract of Autumn Symposium Of The Japan Institute Of Metals (1989) S7.18, N. Maeda et al.
Abstract of Autumn Symposium Of The Japan Institute Of Metals, (1989) S.7.22, M. Shinki et al.
Material Of 53rd Meeting Of Superplasticity, Jan., 1990, N. Maeda.
Abstract Of General Lecture In Autumn Symposium Of The Japan Institute of Metals, Nov. 1988, 576, S. Noda et al.

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