VERIFICATION OF THREE 3D INDIVIDUAL GRAIN GROWTH RATES WITH LARGE-SCALE MONTE CARLO SIMULATION

Acta Metall Sin

2008, Vol. 44

Issue (1): 13-18 DOI:

Research Articles

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VERIFICATION OF THREE 3D INDIVIDUAL GRAIN GROWTH RATES WITH LARGE-SCALE MONTE CARLO SIMULATION

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北京科技大学

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. VERIFICATION OF THREE 3D INDIVIDUAL GRAIN GROWTH RATES WITH LARGE-SCALE MONTE CARLO SIMULATION. Acta Metall Sin, 2008, 44(1): 13-18 .

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Abstract Three existing topological dependence equations for the growth rate of three-dimensional individual grains have been testified using a new Potts model Monte Carlo simulation. The result shown that the volume change rate dVf/dt is related to the face number f by a curve, and thus, Rivier’s grain growth rate equation that predicts dVf/dt ∝f is not confirmed. Yu-Liu’s grain growth rate equation and MacPherson-Srolovitz’s grain growth rate equation are confirmed by mean of the simulation in the case of the face number f≥8. Yu-Liu’s grain growth rate equation and MacPherson-Srolovitz’s grain growth rate equation are not valid in the case of the face number f<8.

Key words: Three–dimensional grain growth topology-dependent grain growth rate equation large-scale Potts Mont

Received: 28 May 2007

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