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Evolution of Microstructure in the BCC-HCP Martensitic Phase Transition in Zirconium

Published online by Cambridge University Press:  10 February 2011

G. J. Ackland  and
U. Pinsook
G. J. Ackland
Affiliation:
Department of Physics, The University of Edinburgh, James Clerk Maxwell Building, Kings Buildings, Mayfield Road, Edinburgh EH9 3JZ
U. Pinsook
Affiliation:
Department of Physics, The University of Edinburgh, James Clerk Maxwell Building, Kings Buildings, Mayfield Road, Edinburgh EH9 3JZ
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Abstract

We report molecular dynamics simulations of the martensitic phase transition from bcc to hep in zirconium. We show the evolution of a laminated twinned microstructure, in which some plastic deformation has occurred to rotate the twins manifested as basal stacking faults. This rotation is such as to alter the twinning angle from the 60° between the hep variants to the 61.5° angle of the low energy (1011) twins. These are thus identified as a cause of microscopic irreversibility in the transition.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 492: Symposium S – Microscopic Simulation of Interfacial Phenomena in Solids… , 1997 , 281
Copyright
Copyright © Materials Research Society 1998

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References

REFERENCES

[1] Nishiyama, Z., Martensitic transformations (Academic, New York, 1978).Google Scholar
[2] Willaime, F. and Massobrio, C., Phys. Rev. B 43, 11653 (1991).Google Scholar
[3] Ye, Y.-Y., Chen, Y., Ho, K.-M., Harmon, B.N. and Lindgard, P.-A., Phys. Rev. Lett. 58, 1769 (1987).Google Scholar
[4] Lindgard, P.-A. and Mouritsen, O.G., Phys. Rev. Lett. 57, 2458 (1986).Google Scholar
[5] Castan, T. and Lindgard, P.-A., Phys. Rev. B 40, 5069 (1989).Google Scholar
[6] Serra, A. and Bacon, D.J., Mater. Sci. Forum 126–128, 69 (1993).Google Scholar
[7] Morris, J.R., Ye, Y.-Y., Ho, K.-M., Chan, C.-T. and Yoo, M.-H., Phil. Mag. A 72, 751 (1995).Google Scholar
[8] Dang, P. and Grujicic, M., Modelling Simul. Mater. Sci. Eng. 4, 123 (1996).Google Scholar
[9] Ackland, G.J., D. Phil thesis, Oxford University (1987);Google Scholar
Finnis, M.W., UKAEA Report AERE R13182 (1988).Google Scholar
[10] Finnis, M.W. and Sinclair, J.F., Phil. Mag. A 50, 45 (1984), A 53, 161 (1986).Google Scholar
[11] Daw, M.S. and Baskes, M.I., Phys. Rev. B 29, 6443 (1984).Google Scholar
[12] Ackland, G.J., Wooding, S.J. and Bacon, D.J., Phil. Mag. A 71, 553 (1995).Google Scholar
[13] Pinsook, U. and Ackland, G.J., in preparation.Google Scholar
[14] Ackland, G., Tichy, G.I., Vitek, V., and Finnis, M.W., Phil. Mag. A 56, 735 (1987).Google Scholar
[15] Gavartin, J., private communication.Google Scholar