Hostname: page-component-6bf8c574d5-mggfc Total loading time: 0 Render date: 2025-02-20T14:54:28.586Z Has data issue: false hasContentIssue false
  • English
  • Français

Coherent Nucleation and Growth of Marte1Nite in B2 Nial Oberved in Computer Simulations

Published online by Cambridge University Press:  25 February 2011

P. C. Clapp ,
Y. Shao  and
J. A. Rifkin
P. C. Clapp
Affiliation:
Center for Materials Simulation, Institute of Materials Science, U-136, University of Connecticut, Storrs, CT 06269-3136
Y. Shao
Affiliation:
Center for Materials Simulation, Institute of Materials Science, U-136, University of Connecticut, Storrs, CT 06269-3136
J. A. Rifkin
Affiliation:
Center for Materials Simulation, Institute of Materials Science, U-136, University of Connecticut, Storrs, CT 06269-3136
Get access

Abstract

In atomistic simulations of B2 NiAl usirn Molecular Dynamics and Emxbedded Atom Method Ni-Al potentials, both thermally induoed and stress induced crent martensitic nucleation and growth processes of a tetragonal Llo phase have been observed, including the formation of self-accommodating martensite variants. Nucleation is found to occur only at special heterogeneous sites that can be well characterised. Prior to nucleation, clear evidence of the buildup of large amplitude localized soft modes can be seen. A discussion of the kinetics of these processes is presented.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 246: Symposium M – Shape-Memory Materials and Phenomena--Fundamental Aspects and Applications , 1991 , 3
Copyright
Copyright © Materials Research Society 1992

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

Refernenes

[1]Bereidsen, H. J. C., Postma, J. P. M., Gunsteren, W. F. van, DiNola, A. and Haak, J. R., J. Chem. Phys. 81, 3684 (1984)Google Scholar
[2]Voter, A. F. and Chen, S. P., MRS Symp. Proc. 82, 175 (1987)CrossRefGoogle Scholar
[3]Daw, M. S. and Baskes, M. I., Phys. Rev. B 29, 6443 (1984)Google Scholar
[4]Foiles, S. M., Baskes, M. I. and Daw, M. S., Phys. Rev. B 33, 7983 (1986)Google Scholar
[5]Smialek, J. L. and Hehemann, R. F., Metall. Trans. 4, 1571 (1973)Google Scholar
[6]Kaufman, L. and Cohen, M., Prog. Met. Phys. 7, 165 (1958)CrossRefGoogle Scholar
[7]Clapp, P. C., Mat. Sci. Eng. A127, 189 (1990)Google Scholar
[8]Georgopoulus, P. and Cohen, J. B., Scripta Met. 11, 147 (1977)Google Scholar
[9]Clapp, P. C., Phys. Status Solidi B, 57, 561 (1973)Google Scholar
[10]Suzuki, T. and Wuttig, M., Acta Metall., 23,1069 (1975)Google Scholar
[11]Guenin, G. and Gobin, P. F., Metall. Trans. A, 13, 1127 (1982)CrossRefGoogle Scholar
[12]Guenin, G. and Clapp, P. C., Proc. Int. Conf. on Martensitic Transformations, 1986, Japan Institute of Metals, Sendai, 1987, pp. 171–179 Google Scholar