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Texture analysis of grain refinement in undercooled Ni99.45B0.55

Published online by Cambridge University Press:  31 January 2011

K. L. Lee ,
C. H. Shek  and
H. Yang
K. L. Lee
Affiliation:
Department of Physics and Materials Science, City University of Hong Kong, Kowloon Tong, Hong Kong, People's Republic of China
C. H. Shek
Affiliation:
Department of Physics and Materials Science, City University of Hong Kong, Kowloon Tong, Hong Kong, People's Republic of China
H. Yang
Affiliation:
Physics Department, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong, People's Republic of China
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Abstract

Recently, it was demonstrated that Ni99.45B0.55 undergoes grain refinement by either remelting or dynamic nucleation at two different undercoolings. In this work, we found that the grain refinement by remelting can be characterized by a gradual disappearance of the texture of the initially formed dendrites in the transition regime while the grain refinement by dynamic nucleation is characterized by a sudden disappearance of texture.

Type
Articles
Information
Journal of Materials Research , Volume 16 , Issue 5 , May 2001 , pp. 1434 - 1438
Copyright
Copyright © Materials Research Society 2001

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References

REFERENCES

1.Walker, J.L., in Physical Chemistry of Process Metallurgy, edited by Pierre, G.R.St. (Wiley, New York, 1961), p. 845.Google Scholar
2.Horvay, G., Int. J. Heat Mass Transfer 8, 195 (1965).CrossRefGoogle Scholar
3.Glicksman, M.E., Acta Metall. 13, 1231 (1965).CrossRefGoogle Scholar
4.Jackson, K.A., Hunt, J.D., Uhlmann, D.R., and Seward, T.P. III, Trans. Metall. Soc. AIME 236, 149 (1966).Google Scholar
5.Schwarz, M., Karma, A., Eckler, K., and Herlach, D.M., Phys. Rev. Lett. 73, 1380 (1994).CrossRefGoogle Scholar
6.karma, A., Int. J. Non-Equilib. Process. 11, 201–233 (1998).Google Scholar
7.Munitz, A. and Abbaschian, G.J., in Undercooled Alloy Phases, edited by Collings, E.W. and Koch, C.C. (The Metall. Soc., Warrendale, PA, 1986), p. 23.Google Scholar
8.Leung, K.K. and Kui, H.W., Scr. Metall. 32, 1559 (1995).CrossRefGoogle Scholar
9.Xiao, J.Z., Yang, H., and Kui, H.W., in Phase Transformations and Systems Driven Far From Equilibrium, edited by Ma, E., Atzmon, M., Bellon, P., and Trivedi, R. (Mater. Res. Soc. Symp Proc. 481, Warrendale, PA, 1998), p. 15.Google Scholar
10.Gartner, F., Norman, A.F., Greer, A.L., Zambon, A., Ramous, E., Eckler, K., and Herlach, D.M., Acta Mater. 45, 51 (1997).CrossRefGoogle Scholar
11.Kui, H.W., Greer, A.L., and Turnbull, D., Appl. Phys. Lett. 45, 615 (1984).CrossRefGoogle Scholar