Please use this identifier to cite or link to this item:
Title: Spinodal decomposition of fine-grained binary alloys: a Monte-Carlo simulation
Authors: Liu, J.-M. 
Lim, L.C. 
Wu, Z.C.
Cao, G.H.
Chen, G.
Liu, Z.G.
Issue Date: 2000
Source: Liu, J.-M., Lim, L.C., Wu, Z.C., Cao, G.H., Chen, G., Liu, Z.G. (2000). Spinodal decomposition of fine-grained binary alloys: a Monte-Carlo simulation. Journal of Materials Science 35 (11) : 2729-2734. ScholarBank@NUS Repository.
Abstract: The kinetics of spinodal decomposition of binary alloys in case of finite grain size and slow grain growth is studied by applying the Monte-Carlo method where a coupled algorithm of the spin-exchange Ising model and Q-state Potts model operates. The anisotropic energy of grain boundaries is incorporated by imposing a Potts spin lattice on the Ising crystal. We simulate the phase separation where the grain size is comparable with the spinodal length on the order of magnitude. It is revealed that the grain boundaries of low excess energy as rapid channel enhance the solute diffusion, whereas those boundaries of high excess energy hinder the solute diffusion. Depending on the system supersaturation, phase aggregation preferred at the grain boundaries is demonstrated. The spinodal kinetics is modulated by the grain growth so that the Lifshitz-Slyozov-Wagner law may no longer be applicable in spite of the scaling law roughly holds in present system.
Source Title: Journal of Materials Science
ISSN: 00222461
DOI: 10.1023/A:1004762128094
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.


checked on Feb 27, 2018


checked on Feb 14, 2018

Page view(s)

checked on Mar 12, 2018

Google ScholarTM



Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.