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Simulation by Cellular Automata of the Crystallization of a Matrix Containing a Mobile Second Phase

Published online by Cambridge University Press:  21 February 2011

R.K. Shelton  and
D.C. Dunand
R.K. Shelton
Affiliation:
Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.
D.C. Dunand
Affiliation:
Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA.
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Abstract

Two-dimensional cellular automaton computer simulations were carried out to model the geometric interaction between growing matrix grains and mobile, equiaxed particles, thus simulating crystallization (respectively, recrystallization, phase transformation or solidification) of a material containing mobile particles. As a result of particle pushing by growing grains, particle accumulation at grain boundaries and triple-points and concomitant particle depletion within grains occurs. A range of grain nucleation rate, particle area fractions and particle settling rate was investigated under continuous grain nucleation conditions. While these parameters do not change the crystallization kinetics or grain size or shape, they strongly affect the particle spatial distribution and clustering during and after crystallization.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 398: Symposium C – Thermodynamics and Kinetics of Phase Transformations , 1995 , 457
Copyright
Copyright © Materials Research Society 1998

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References

REFERENCES

1 Humphreys, F.J. and Hatherly, M., Recrystallization and Related Annealing Phenomena, Pergamon, New York, 1995.Google Scholar
2 Mahin, K.W., Hanson, K., and Morris, J.W., Acta Metall. 28, p. 443 (1980).Google Scholar
3 Srolovitz, D.J., Grest, G.S., and Anderson, M.P., Acta Metall. 34, p. 1833 (1986).Google Scholar
4 Frost, H.J. and Thompson, C.V., Acta Metall. 35, p. 529 (1987).Google Scholar
5 Marthinsen, K., Lohne, O., and Nes, E., Acta Metall. 37, p. 135 (1989).Google Scholar
6 Hesselbarth, H.W. and Göbel, I.R., Acta Metall. Mater. 39, p. 2135 (1991).Google Scholar
7 Spittle, J.A. and Brown, S.G.R., Acta Metall. 37, p. 1803 (1989).Google Scholar
8 Zhu, P. and Smith, R.W., Acta Metall. Mater. 40, p. 683 (1992).Google Scholar
9 Rappaz, M. and Gandin, C.A., Acta Metall. Mater. 41, p. 345 (1993).Google Scholar
10 Humphreys, F.J., Mat. Sci. Technol. 8, p. 135 (1992).Google Scholar
11 Rollett, A.D., Srolovitz, D.J., Anderson, M.P., and Doherty, R.D., Acta Metall. Mater. 40, p. 3475 (1992).Google Scholar
12 Mehl, N.A. and Rebenfeld, L., J. Polym. Sei. Polym. Phys. Ed. 31, p. 1677 (1993).Google Scholar
13 Pezzee, C.F. and Dunand, D.C., In Crystallization and Related Phenomena in Amorphous Materials, edited by Libera, M., Haynes, T.E., Cebe, P., and Dickinson, J.E. (MRS vol. 321, Pitsburgh, PA, 1994), p. 295–300.Google Scholar
14 Pezzee, C.F. and Dunand, D.C., Acta Metall. Mater. 42, p. 1509 (1994).Google Scholar
15 Ashby, M.F. and Centamore, R.M.A., Acta Metall. 16, p. 1081 (1968).Google Scholar
16 Mortensen, A. and Jin, I., Intern. Mater. Rev. 37, p. 101 (1992).Google Scholar
17 Rohatgi, P.K., Asthana, R., and Das, S., Intern. Metals Rev. 31, p. 115 (1986).Google Scholar