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Comparative Study of the Microstructure and Tensile Properties of Ni-Al Alloys with Fe and Cr Additions

Published online by Cambridge University Press:  10 February 2011

E. Pekarskaya ,
C. J. Humphreys  and
C. N. Jones
E. Pekarskaya
Affiliation:
Department of Materials Science and Metallurgy, University of Cambridge Pembroke Street, Cambridge CB2 3QZ, UK
C. J. Humphreys
Affiliation:
Department of Materials Science and Metallurgy, University of Cambridge Pembroke Street, Cambridge CB2 3QZ, UK
C. N. Jones
Affiliation:
ROLLS-ROYCE plc, PO BOX 31, Derby, DE24 8BJ, UK
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Abstract

The tensile behaviour of Ni-32at.% Al-5at.% Fe and Ni-32at.% Al-12 at.% Cr two-phase intermetallic compounds has been studied in the 20–750°C temperature range. TEM studies of the defect structures have been performed. Both alloys exhibit a brittle behaviour at room temperature, while at high temperature the Ni-Al-Cr alloy appears to be much more ductile that the Ni-Al-Fe alloy. Various reasons for the limited ductility and the brittle-to-ductile transition in these alloys are discussed.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 552: Symposium KK – High-Temperature Ordered Intermetallic Alloys VIII , 1998 , KK5.18.1
Copyright
Copyright © Materials Research Society 1999

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References

REFERENCES

1. Guha, S., Baker, I. and Munroe, P.R., J. Mater. Sci. 31, 4055 (1996)Google Scholar
2. Ishida, K., Kainuma, R., Ueno, N. and Nishizawa, T., Met. Trans. A 22, 441 (1991)CrossRefGoogle Scholar
3. Yang, R., Leake, J.A. and Cahn, R.W., Mater. Sci. & Eng. A 152, 227 (1992)Google Scholar
4. Mishima, Y., Kato, M., Kimura, Y., Hosoda, H. and Miura, S., Intermetallics 4, S171 (1996)Google Scholar
5. Tsau, C.H., Jang, J.S.C. and Yeh, J.W., Mater. Sci. & Eng. A 152, 264 (1992)Google Scholar
6. Misra, A. and Gibala, R., Met. Mat. Trans. 28A (March), 795 (1997)Google Scholar
7. Baker, I., Guha, S. and Horton, J.A., Phil. Mag. A 67 (3), 663 (1993)Google Scholar
8. Pekarskaya, E., Botton, G.A., Jones, C.N. and Humphreys, C.J., Inst.Phys.Conf.Ser. 153, 549 (1997)Google Scholar
9. Cotton, J.D., Noebe, R.D. and Kaufmann, M.J., Intermetallics 1, 3 (1993)Google Scholar
10. Shi, X., Mahajan, S., Pollock, T.M. and Arunachalam, V.S., Phil. Mag. A, in pressGoogle Scholar
11. Botton, G.A., Guo, G.Y., Temmerman, W.M. and Humphreys, C.J., Phys.Rev. B 54, 1682 (1996)CrossRefGoogle Scholar
12. Schaible, D., Hirscher, M. and Kronmüller, H., Phil. Mag. Lett. 78 (2), 121 (1998)CrossRefGoogle Scholar
13. Shi, X., Mahajan, S., Pollock, T.M. and Arunachalam, V.S., submitted to IntermetallicsGoogle Scholar