Model-based simulation of normal grain growth in a two-phase nanostructured system

Y. G. Zheng; C. Lu; Y. W. Mai; H. W. Zhang; Z. Chen

doi:10.1016/j.stam.2006.11.008

Model-based simulation of normal grain growth in a two-phase nanostructured system

Y. G. Zheng, C. Lu, Y. W. Mai, H. W. Zhang, Z. Chen

Research output: Journal article publication › Journal article › Academic research › peer-review

11 Citations (Scopus)

Abstract

To systematically study normal grain growth in a two-phase volume-conserved system, a modified Potts model is proposed, in which the driving forces for grain boundary migration are the interfacial energy between two phases and the boundary energy inside each phase. Model-based simulation results show that the grain growth kinetics follows a power law with a temperature-independent exponent and that the normalized grain size distribution is lognormal and time invariant. Also, a simple theoretical model is used to predict the potential microstructure in a two-phase system due to the competition between interfacial and grain boundary energies. A critical ratio (∼2.6) of the grain boundary energy to the interfacial energy is found for a common two-phase system.

Original language	English
Pages (from-to)	812-818
Number of pages	7
Journal	Science and Technology of Advanced Materials
Volume	7
Issue number	8
DOIs	https://doi.org/10.1016/j.stam.2006.11.008
Publication status	Published - Nov 2006
Externally published	Yes

Keywords

Grain growth
Monte Carlo simulation
Nanostructured materials
Potts model

ASJC Scopus subject areas

General Materials Science

More information

10.1016/j.stam.2006.11.008

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title = "Model-based simulation of normal grain growth in a two-phase nanostructured system",

abstract = "To systematically study normal grain growth in a two-phase volume-conserved system, a modified Potts model is proposed, in which the driving forces for grain boundary migration are the interfacial energy between two phases and the boundary energy inside each phase. Model-based simulation results show that the grain growth kinetics follows a power law with a temperature-independent exponent and that the normalized grain size distribution is lognormal and time invariant. Also, a simple theoretical model is used to predict the potential microstructure in a two-phase system due to the competition between interfacial and grain boundary energies. A critical ratio (∼2.6) of the grain boundary energy to the interfacial energy is found for a common two-phase system.",

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AU - Zheng, Y. G.

AU - Lu, C.

AU - Mai, Y. W.

AU - Zhang, H. W.

AU - Chen, Z.

PY - 2006/11

Y1 - 2006/11

N2 - To systematically study normal grain growth in a two-phase volume-conserved system, a modified Potts model is proposed, in which the driving forces for grain boundary migration are the interfacial energy between two phases and the boundary energy inside each phase. Model-based simulation results show that the grain growth kinetics follows a power law with a temperature-independent exponent and that the normalized grain size distribution is lognormal and time invariant. Also, a simple theoretical model is used to predict the potential microstructure in a two-phase system due to the competition between interfacial and grain boundary energies. A critical ratio (∼2.6) of the grain boundary energy to the interfacial energy is found for a common two-phase system.

AB - To systematically study normal grain growth in a two-phase volume-conserved system, a modified Potts model is proposed, in which the driving forces for grain boundary migration are the interfacial energy between two phases and the boundary energy inside each phase. Model-based simulation results show that the grain growth kinetics follows a power law with a temperature-independent exponent and that the normalized grain size distribution is lognormal and time invariant. Also, a simple theoretical model is used to predict the potential microstructure in a two-phase system due to the competition between interfacial and grain boundary energies. A critical ratio (∼2.6) of the grain boundary energy to the interfacial energy is found for a common two-phase system.

KW - Grain growth

KW - Monte Carlo simulation

KW - Nanostructured materials

KW - Potts model

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Model-based simulation of normal grain growth in a two-phase nanostructured system

Abstract

Keywords

ASJC Scopus subject areas

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