Numerical Simulation on the Solidification of ZA27 Alloy by a Two-Phase Flow Model

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Abstract:

ZA27 alloy solidifies in the way of paste-solidification, and results in gravity segregation. The two-phase flow model was developed on the basis of the solidification characteristic of the ZA 27 alloy. And the governing equations of the solidification process were differentiated and computed in a 3-D cylindrical coordinate system through a heat and fluid simulation software package (PHOENICS). The computation of the concentration field indicated a segregation of Al, and is in good agreement with the experiments. This model could simulate the convection and the gravitational segregation during the solidification.

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Materials Science Forum (Volumes 475-479)

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3203-3206

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January 2005

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© 2005 Trans Tech Publications Ltd. All Rights Reserved

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[1] P.P. Lee, T. Savaskan, E. Laufer, Wear 117 (1987) 79.

Google Scholar

[2] R.C. Erichson, Journal bearing applications of two zinc alloys. Canadian Institute of Metallurgists Conf., Toronto, (1982).

Google Scholar

[3] Habiby F, Etc. Macrosegregation and Underside Shrinkage in Sand Cast Zinc 27%-Aluminum Alloy. AFS Transactions, 92 (1984): 263~69.

Google Scholar

[4] N. Mykura, S. Murphy, In 25th Annual Conference of Metallurgists, 1986 Proceedings International Symposium on Zinc-Aluminum (ZA) Casting Alloys, In: G.B. Lewis, R.J. Barnhurst, C.A. Loon (Eds. ), (1986).

Google Scholar

[5] P.A. Porot, N. Ventham, R.D. Jones, J.A. Spittle, Metallography 20 (1987) 181.

DOI: 10.1016/0026-0800(87)90028-0

Google Scholar

[6] Zhang Yuanjun, Wang Huiyu. Two-Phase Fluid Dynamics[M]. Beihang University Press. 1987: 73~77.

Google Scholar

[7] Yang Quan, Zhang Zhen. Numerical Simulation And Modeling Of Casting And Solidification Process For Foundry And Casting[M]. Zhejiang University Press. 1995: 75~81.

Google Scholar