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Atomistic Simulation of Crystal-to-Amorphous Transitions in the Intermetallic Alloys NiZr2 and Cu3Au.

Published online by Cambridge University Press:  26 February 2011

Fabrizio Cleri ,
Vittorio Rosato  and
Carlo Massobrio
Fabrizio Cleri
Affiliation:
ENEA, C.R.E. Casaccia, INN/MMI, CP2400, 00100 Roma, Italy
Vittorio Rosato
Affiliation:
ENEA, C.R.E. Casaccia, INN/MMI, CP2400, 00100 Roma, Italy
Carlo Massobrio
Affiliation:
Ecole Polytechnique Federale, IPE, Ecublens, CH 1015 Lausanne, Switzerland
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Abstract

The behaviour of two different systems, NiZr2 and Cu3Au, submitted to a chemical disordering process under various thermodynamical conditions has been investigated by Molecular Dynamics simulations. The role played by volume expansion and elastic softening in the onset of the transition has been discussed in the framework of the percolation model (C.Massobrio and V.Pontikis, Phys.Rev.B 45 (1992) 2484), correlating the elastic instability with the percolation of the distorted regions which establishes in the lattice as a consequence of the external perturbations (introduction of defects, volume expansion, chemical disorder etc.).

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 278: Symposium W – Computational Methods in Materials Science , 1992 , 87
Copyright
Copyright © Materials Research Society 1992

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References

[1] Meng, W.J., Okamoto, P.R., Thompson, L.J., Kestel, B.J. and Rehn, L.E., Appl.Phys. Lett. 53 (1988) 1820 CrossRefGoogle Scholar
[2] Luzzi, D.E. and Meshii, M., Res Mechanica 21 (1987) 207 Google Scholar
[3] Okamoto, P.R., Rehn, L.E., Pearson, J., Bhadra, R. and Grimsditch, M., J.Less Common Met. 140 (1988) 231 CrossRefGoogle Scholar
[4] Yeh, X.L., Samwer, K. and Johnson, W.L., Appl.Phys.Lett. 42(1983) 242 Google Scholar
[5] Mazzone, G., Montone, A. and Antisari, M. Vittori, Phys.Rev.Lett. 65(1990) 2019 Google Scholar
[6] Schwarz, R.B. and Johnson, W.L., Phys.Rev.Lett. 51 (1983) 415 Google Scholar
[7] Cahn, R.W. and Johnson, W.L., J.Mat.Res., 1 (1986) 724 CrossRefGoogle Scholar
[8] Rehn, L.E., Okamoto, P.R., Pearson, J., Bhadra, R. and Grimsditch, M., Phys.Rev.Lett. 59 (1987) 2987 Google Scholar
[9] Tallon, J., Phil.Mag. 39 (1979) 151 CrossRefGoogle Scholar
[10] Wolf, D., Okamoto, P.R., Yip, S., Lutsko, J.F. and Kluge, M., J.Mat.Res. 5 (1990) 286 CrossRefGoogle Scholar
[11] Massobrio, C., Rosato, V. and Willaime, F., Proc. of the Material Research Society Fall Meeting 1990, Symposium F, Boston MA 26-30/11/1990Google Scholar
[12] Massobrio, C., Pontikis, V. and Martin, G.,Phys.Rev.Lett. 62(1989) 1142 Google Scholar
[13] Massobrio, C., Pontikis, V. and Martin, G.,Phys.Rev.B 41 (1990) 10486 CrossRefGoogle Scholar
[14] Luzzi, D.E. and Meshii, M., J.Less Comm.Met. 140 (1988) 193 CrossRefGoogle Scholar
[15] Mori, H., Fujita, H. and Fujita, M.,Jpn.J.Appl.Phys. 22 (1983) L94 Google Scholar
[16] Motta, A.T. and Olander, D.R., Acta Metall.Mater. 11 (1990) 2175 CrossRefGoogle Scholar
[17] Sabochick, M.J. and Lam, N.Q., Phys.Rev.B 43 (1991) 5243 Google Scholar
[18] Mori, H., Fujita, H., Tendo, M. and Fujita, M.,Scripta Met. 18(1984)783 Google Scholar
[19] Gaffet, E., Mat.Sci. and Eng. A119 (1989) 185 Google Scholar
[20] Selected Values of Thermodynamical Properties of Binary Alloys, eds.:Hultgren, R.H., vol.1,American Society for Metals 1988 Google Scholar
[21] Rosato, V., Guillopé, M. and Legrand, B., Phil.Mag.A 59 (1989) 321 Google Scholar
[22] Cleri, F., Mazzone, G. and Rosato, V., to be publishedGoogle Scholar
[23] Massobrio, C. and Pontikis, V., Phys.Rev.B 45 (1992) 2484 CrossRefGoogle Scholar
[24] Friedel, J., Phil.Mag., 46 (1955) 514 Google Scholar