Phase-Field Modeling as a Method Relevant for Modeling Phase Transformation During Interdiffusion

Choudhury, A (2017) Phase-Field Modeling as a Method Relevant for Modeling Phase Transformation During Interdiffusion. [Book Chapter]

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Abstract

Phase-field modeling has developed as an important tool in investigating microstructural evolution in a variety of phenomena such as solidification, solid-state phase transformations, electrochemical reactions, mechanical deformation and fracture processes, and also domain evolution in ferro-electric materials. Given the strong thermodynamic basis for the formulation of these models, they can be used to obtain strong predictions about structural pattern formation as a function of the material processing parameters. In this chapter, I will first give a brief history of the evolution in phase-field modeling, thereafter discuss the ingredients of a particular phase-field formulation, starting from the construction of the functional and the eventual derivation of the evolution equations of the order-parameters and the relevant state-variables. I will then utilize the formulation to highlight, how some of the phenomena regarding interdiffusion in a diffusion couple can be captured. Subsequently, I will place the model in the context of modeling real alloys with the incorporation of thermodynamic information from CALPHAD databases and mobilities from kinetic databases. © 2017 Elsevier Inc. All rights reserved.

Item Type:	Book Chapter
Publication:	Handbook of Solid State Diffusion: Diffusion Fundamentals and Techniques: Volume 1
Publisher:	Elsevier
Additional Information:	The copyright for this article belongs to Elsevier.
Department/Centre:	Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Date Deposited:	27 Aug 2024 08:04
Last Modified:	27 Aug 2024 08:04
URI:	http://eprints.iisc.ac.in/id/eprint/84580

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