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Home  >  Journal list  >  MATERIALS TRANSACTIONS  >  Vol.43  No.4 (2002)  >  pp.721-726

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Solid-liquid Interface Energy of Metals at Melting Point and Undercooled State

Zengyun Jian1), Kazuhiko Kuribayashi1) and Wanqi Jie2)
1) The Institute of Space and Astronautical Science
2) State Key Laboratory of Solidification Processing, Northwestern Polytechnical University

By investigating the effects of the configurational entropy, the vibrational entropy and the bonding strength of solid-liquid atoms on the structure of solid-liquid interface, a model for the interface energy of rough solid-liquid interface has been developed. From present model, the non-dimensional solid-liquid interface energies for metals at melting point are predicted to be 0.66–0.73, which are almost equal to the experimental result (0.66–0.75) obtained from grain boundary method. The solid-liquid interface energy decreases with increasing undercooling. At the maximum undercoolings that metals have reached, the non-dimensional solid-liquid interface energies predicted from present model are equal to 0.52–0.56. They are near to the experimental results (0.49–0.57) obtained from nucleation undercooling method. The predicted results of solid-liquid interface energy for metals from present model are in very good agreement with the experimentally measured results at melting point and undercooled state.

solid-liquid interface energy, entropy, configuration, undercooling, metal

Received: January 23, 2002
Accepted: February 25, 2002 , Published online: September 06, 2005
Copyright (c) 2005 The Japan Institute of Metals



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