Hostname: page-component-6bf8c574d5-7jkgd Total loading time: 0 Render date: 2025-02-18T06:35:34.007Z Has data issue: false hasContentIssue false
  • English
  • Français

The Temperature Dependence of the Mechanical Properties of Gamma TiAl

Published online by Cambridge University Press:  22 February 2011

B. Viguier ,
J. Bonneville ,
K. J. Hemker  and
J. L. Martin
B. Viguier
Affiliation:
Institut de Génie Atomique, Ecole Polytechnique Fédérate de Lausanne, Switzerland
J. Bonneville
Affiliation:
Institut de Génie Atomique, Ecole Polytechnique Fédérate de Lausanne, Switzerland
K. J. Hemker
Affiliation:
Johns Hopkins University, Dept. of Mechanical Eng., Baltimore, MD, USA.
J. L. Martin
Affiliation:
Institut de Génie Atomique, Ecole Polytechnique Fédérate de Lausanne, Switzerland
Get access

Abstract

Mechanical properties of a polycrystalline single phased γ Ti47Al51Mn2 alloy were studied by compression tests in a wide range of temperature (100 K - 1300 K). We report, in this paper, the temperature dependence of both the flow stress and its strain rate sensitivity. These dependencies show the existence of three temperature domains corresponding to different dislocation motion mechanisms. The temperature dependence of the flow stress strain rate sensitivity is compared with values measured in single crystals1.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 364: Symposium L – High-Temperature Ordered Intermetallic Alloys–VI , 1994 , 629
Copyright
Copyright © Materials Research Society 1995

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

1 Kawabata, T. S., Kanaï, T. and Izumi, O., Acta. Metall. 33, 1355 (1985).Google Scholar
2 Viguier, B., Hemker, K.J., Bonneville, J., Louchet, F. and Martin, J.L., Phil Mag. A, accepted for publication (1994)Google Scholar
3 Viguier, B., Hemker, K.J., Cieslar, M. and Martin, J.L., this volume.Google Scholar
4 Bonneville, J., Baluc, N. and Martin, J.L., Proc. of 6th. JIMIS on Intermetallic Compounds. Ed. by Izumi, O., Sendaï, Japan, 323 (1991).Google Scholar
5 Thornton, P.H., Davies, R.G. and Johnston, T.L., Metall. Trans. 1, 207 (1970).Google Scholar
6 Ezz, S.S. and Hirsch, P.B., Phil. Mag. A 69, 105 (1994).Google Scholar
7 Schafrik, R.E., Metall. Trans. A 8, 1003 (1977).Google Scholar
8 Kad, B.K. and Fraser, H.L., Phil. Mag. A 69, 689 (1994).Google Scholar
9 Spätig, P., Bonnevile, J. and Martin, J.L., Mat. Scienc. and Eng. A 167, 73 (1993).Google Scholar
10 Viguier, B. and Bonneville, J., to be submitted.Google Scholar