Growth History of Individual Grains in Polycrystals: Theoretical Model and Simulation Studies

Dana Zöllner; Peter Streitenberger

doi:10.4028/www.scientific.net/MSF.715-716.877

Paper Titles

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HomeMaterials Science ForumMaterials Science Forum Vols. 715-716Growth History of Individual Grains in...

Growth History of Individual Grains in Polycrystals: Theoretical Model and Simulation Studies

Abstract:

A 3D grain growth model is developed based on a generalised mean-field approach. It allows the prediction of the growth history of individual grains of a polycrystal during normal grain growth, which has been compared with results from Monte Carlo Potts simulations showing a good agreement. Based on a stochastic grain growth model the diffusivity of the Brownian-like motion of individual quadruple points and triple junctions in 2D sections can be related to the average growth rate providing a possibility for the determination of the average growth law of the grain ensemble solely from the stochastic growth behaviour of single grains.

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Periodical:

Materials Science Forum (Volumes 715-716)

Pages:

877-882

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.715-716.877

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Online since:

April 2012

Authors:

Dana Zöllner, Peter Streitenberger

Keywords:

Grain Growth, Growth History, Individual Grains, Microstructure, Monte-Carlo Simulation, Statistical Mean-Field Theory

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