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Forming of γ-TiAl-Alloys

Published online by Cambridge University Press:  01 January 1992

K. Wurzwallner ,
H. Clemens ,
P. Schretter ,
A. Bartels  and
C. Koeppe
K. Wurzwallner
Affiliation:
BÖHLER Edelstahl GmbH, A-8605 Kapfenberg, Austria
H. Clemens
Affiliation:
Metallwerk Plansee GmbH, A-6600 Reutte, Austria
P. Schretter
Affiliation:
Metallwerk Plansee GmbH, A-6600 Reutte, Austria
A. Bartels
Affiliation:
Technische Universität Hamburg-Harburg, Werkstoffphysik und -technologie, D-2100 Hamburg 90, Germany
C. Koeppe
Affiliation:
Technische Universität Hamburg-Harburg, Werkstoffphysik und -technologie, D-2100 Hamburg 90, Germany
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Abstract

The forging and rolling behavior of binary Ti-48Al and ternary Ti-48Al-2Cr (at-%) on laboratory and industrial scale is investigated. Arc-melted and cast ingots are used for forging operations. In order to enable the determination of optimized forging and rolling conditions the plastic flow behavior was examined for low (< 10−2 s−1) and high (1 s−1) deformation rates.

Forging under near-isothermal conditions was first performed on laboratory scale and upscaled as non-isothermal forging to pancakes of about 50 kg. Rolling tests on forged material are described. This paper presents results of microstructural examinations of forged ingots, rolled and annealed sheets and mechanical properties of sheet material under tensile test conditions.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 288: Symposium L – High-Temperature Ordered Intermetallic Alloys V , 1992 , 867
Copyright
Copyright © Materials Research Society 1995

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References

REFERENCES

1. Semiatin, S.L., Frey, N., El-Soudani, S.M., Bryant, J.D., Met. Trans. A, 23A, 1719 (1992)Google Scholar
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