Mukherjee, R and Abinandanan, TA and Gururajan, MP (2010) Precipitate growth with composition-dependent diffusivity: Comparison between theory and phase field simulations. In: Scripta Materialia, 62 (2). pp. 85-88.
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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.
|Item Type:||Journal Article|
|Additional Information:||copyright of this article belongs to Elsevier Science.|
|Keywords:||Phase field modeling;Phase transformation kinetics; Precipitation.|
|Department/Centre:||Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)|
|Date Deposited:||09 Jan 2010 09:34|
|Last Modified:||22 Feb 2012 08:16|
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