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Dislocation Structures in Ni3(Al, Hf)

Published online by Cambridge University Press:  15 February 2011

T. Kruml ,
B. Viguier ,
J. Bonneville ,
P. Spätig  and
J. L. Martin
T. Kruml
Affiliation:
IGA - DP, EPFL, 1015 Lausanne, Switzerland, kruml@igasg4.epfl.ch
B. Viguier
Affiliation:
IGA - DP, EPFL, 1015 Lausanne, Switzerland, kruml@igasg4.epfl.ch
J. Bonneville
Affiliation:
IGA - DP, EPFL, 1015 Lausanne, Switzerland, kruml@igasg4.epfl.ch
P. Spätig
Affiliation:
Paul Scherer Institut, Association Euratom, Villigen, Switzerland
J. L. Martin
Affiliation:
IGA - DP, EPFL, 1015 Lausanne, Switzerland, kruml@igasg4.epfl.ch
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Abstract

Single crystalline specimens of Ni74.8Al21.9Hf3.3 were subjected to compression tests at different temperatures. Thin foils for transmission electron microscopy observations were prepared from several specimens deformed within and above the yield stress anomaly domain. The dislocation microstructure was studied. The weak beam imaging and image simulation techniques followed by anisotropie elasticity calculations were used for the determination of antiphase boundary energies in both cube and octahedral planes, resulting in values of 237 mJm-2 and 252 mJm-2 respectively. The comparison of the present results with data taken from literature shows the influence of Hf on mechanical properties, dislocation microstructures and APB energies.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 460: Symposium Z – High-Temperature Ordered Intermetallic Alloys VII , 1996 , 529
Copyright
Copyright © Materials Research Society 1997

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References

REFERENCES

1. Pope, D.P., Ezz, S.S., International Materials Reviews 29, p. 136 (1984)Google Scholar
2. Sun, Y.Q. and Hazzeldine, P.M., in Ordered Intermetallics - Phys. Met. and Mech. Behaviour, edited by Liu, C.T. (Kluwer Academic Publishers, 1992), p. 177 Google Scholar
3. Baluc, N., Karnthaler, H.P. and Mills, M.J., Phil. Mag. A 64, p. 137 (1991)Google Scholar
4. Saada, G. and Veyssière, P., Phil. Mag. A 66, p. 1081 (1992)Google Scholar
5. Baluc, N., PhD thesis, Ecole Polytechnique de Federale de Lausanne, 1990 Google Scholar
6. Hemker, K.J. and Mills, M.J., Phil. Mag. A 68, p. 305 (1993)Google Scholar
7. Schäublin, R. and Stadelman, P.A., Mater. Sci. Engng A 164, p. 373 (1993)Google Scholar
8. Bonneville, J., Baluc, N. and Martin, J.L. in Proc. of the Jap. Int. Symp. on Intermetallic Compound (JIMIS 6), edited by Izumi, O. (the Japan Institute of Metals, Sendai, 1991), p. 323 Google Scholar
9. Neveu, C., PhD thesis, Université de Paris-Sud Centre d'Orsay, 1991 Google Scholar
10. Schäublin, R.E., Meng, X., and Stobbs, W.M., Ultramicroscopy (submitted to publication)Google Scholar
11. Spätig, P., Bonneville, J., Viguier, B., Matterstock, B. and Martin, J.L., this conferenceGoogle Scholar
12. Spätig, P., Bonneville, J. and Martin, J.L.,, ICSMA 10, (Japan Inst. of Metals, 1994), p. 353 Google Scholar
13. Dimiduk, D.M., Thompson, A.W., Williams, J.C., Phil. Mag. A 67, p. 675 (1993)Google Scholar