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Transition from A Planar Interface to Cellular and Dendritic Structures During Rapid Solidification Processing

Published online by Cambridge University Press:  25 February 2011

V. Laxmanan*
Affiliation:
Department of Metallurgy and Materials Science, Case Western Reserve University, Cleveland, Ohio 44106. Concurrently, Visiting Scientist, NASA Lewis Research Center, Mail Stop 105-1, Cleveland, Ohio 44135.
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Abstract

Microstructural transitions occurring during solidification processes may be described in terms of three dimensionless parameters, s, p and σC, which include among them various processing variables and relevant material constants. The dimensionless parameter, s, in particular offers a convenient description of both planar-cellular and cell-dendrite transitions. The relationships between σC, s and p predicted by various dendrite growth models have been summarized.

Type
Research Article
Copyright
Copyright © Materials Research Society 1986

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References

REFERENCES

1.Laxmanan, V., Mat. Res. Soc. Symp., Vol. 28 (1984), Rapidly Solidified Metastable Materials, Elsevier Science Publishing Co., Inc., p. 2127.Google Scholar
2.Laxmanan, V., NASA Conf. Publication, NASA CP–2337 (1984) p. 33.Google Scholar
3.Laxmanan, V., in Rapidly Quenched Metals, Eds. Steeb, S. and Warlimont, H., Elsevier Science Publishers, B.V. (1985) p. 807.Google Scholar
4.Tiller, W. A., Jackson, K.A., Rutter, J.W. and Chalmers, B., Acta Metall, 1, 428 (1953).Google Scholar
5.Mullins, W.W. and Sekerka, R.F., J. Appl. Phys., 35, 444, (1964).Google Scholar
6.Cahn, J.W., Coriell, S.R. and Boettinger, W.J., in Laser and Electron Beam Processing of Materials, Eds. White, C.W. and Peercy, P.S., Academic Press, New York (1980) p. 89.Google Scholar
7.Ungar, L.H. and Brown, R.A., Phys. Rev. B 29(1984) 1367, 30 (1984) 3993.Google Scholar
8.Coriell, S.R., Cordes, M.R., Boettinger, W.J. and Sekerka, R.F., J. Crystal Growth, 49, 13 (1980), see also in Ref. 2, p. 117.Google Scholar
9.Trivedi, R. and Somboonsuk, K., Acta Metall, 33, 1061 (1985).Google Scholar
10.Esaka, H. and Kurz, W., J. Crystal Growth, 72 (1985) p. 578.Google Scholar
11.Coriell, S.R. and Sekerka, R.F., in Proc. 2nd Int. Conf. on Rapid Solidification Processing, Reston, Virginia (1980), p. 35. Eds. Mehrabian, R., Kear, B.H. and Cohen, M., Claitors Publishing Division, Baton Rouge, LA70821.Google Scholar
12.Laxmanan, V., Acta Metall 33, (1985) 1023, 1037, 1475.Google Scholar
13.Trivedi, R., J. Crystal Growth, 49 (1980) p. 219.Google Scholar
14.Flemings, M.C., in Solidification Processing, McGraw Hill (1974) p. 79.Google Scholar
15.Materials Science and Engineering, Special Issue on Solidification Microstructure, vol. 65, No. 1, July 1984, Eds. Jones, H. and Kurz, W..Google Scholar
16.Kurz, W. and Fisher, D.J., Acta Metall, 29, (1981) p. 11.Google Scholar
17.Somboonsuk, K., Mason, J.T. and Trivedi, R., Metall. Trans. A, 15 (1984) 967, also R. Trivedi, metall. Trans. A, 15 (1984) 977.Google Scholar
18.Kirkaldy, J.S., Scripta Metall, 14 (1980) p. 739.Google Scholar
19.Kirkaldy, J.S., Metall. Trans A, 16A (1985) p. 1781.Google Scholar
20.Hunt, J.D., Solidification and Casting of Metals, The Metals Society Book 192, London, 1979, p. 3.Google Scholar
21.Langer, J.S. and Muller-Krumbhaar, H., J. Crystal Growth, 42 (1977) p. 11, also Acta Metall, 26 (1978) 1681-1697.Google Scholar
22.Trivedi, R., J. Crystal Growth, 73 (1985) 289.Google Scholar
23.Lipton, J., Glicksman, M.E. and Kurz, W., Mat. Sci. & Eng., vol. 65 (1984) p. 57.Google Scholar
24.Laxmanan, V., to be published in Proc. 8th Int. Conf. on Crystal Growth.Google Scholar
25.Kurz, W., Giovanola, B. and Trivedi, R., Acta Metall (1986) in press.Google Scholar
26.Laxmanan, V., “Cellular and dendritic growth in a binary alloy melt: A marginal stability approach”, J. Crystal Growth (in press).Google Scholar