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Precipitate growth with composition-dependent diffusivity: Comparison between theory and phase field simulations

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Title Precipitate growth with composition-dependent diffusivity: Comparison between theory and phase field simulations
 
Creator MUKHERJEE, R
ABINANDANAN, TA
GURURAJAN, MP
 
Subject stress
phase field modeling
phase transformation kinetics
precipitation
 
Description We consider the growth of an isolated precipitate when the matrix diffusivity depends on the composition. We have simulated precipitate growth using the Cahn-Hilliard model, and find good agreement between our results and those from a sharp interface theory for systems with and without a dilatational misfit. With misfit, we report (and rationalize) an interesting difference between systems with a constant diffusivity and those with a variable diffusivity in the matrix. (C) 2009 Acta Materialia Inc.
 
Publisher PERGAMON-ELSEVIER SCIENCE LTD
 
Date 2011-08-25T23:33:58Z
2011-12-26T12:57:16Z
2011-12-27T05:47:17Z
2011-08-25T23:33:58Z
2011-12-26T12:57:16Z
2011-12-27T05:47:17Z
2010
 
Type Article
 
Identifier SCRIPTA MATERIALIA, 62(2), 85-88
1359-6462
http://dx.doi.org/10.1016/j.scriptamat.2009.09.030
http://dspace.library.iitb.ac.in/xmlui/handle/10054/11185
http://hdl.handle.net/10054/11185
 
Language en