MATERIALS TRANSACTIONS
Online ISSN : 1347-5320
Print ISSN : 1345-9678
ISSN-L : 1345-9678
Disorder-L10 Transition Investigated by Phase Field Method with CVM Local Free Energy
Munekazu OhnoTetsuo Mohri
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2001 Volume 42 Issue 10 Pages 2033-2041

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Abstract

The ordering processes of nucleation-growth type and spinodal ordering type are examined using the Phase Field method (PFM) with the free energy formulated based on the Cluster Variation Method. The relaxation curves of Long Range Order parameter, ξ1, predicted by this approach are compared with those obtained by the Path Probability Method (PPM) in the homogeneous limit. Furthermore, it is shown that microstructural evolution process, which is described by time evolution of spatial distribution of ξ12, of spinodal ordering type is indistinguishable from the one of nucleation-growth type.

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© 2001 The Japan Institute of Metals and Materials
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