Monte-Carlo Modeling for Grain Growth Process in Vapor–Liquid–Solid Phase Sintered Materials
The anisotropic grain growth in Vapor–Liquid–Solid phase sintering process was simulated by us with the improved MC method based on the Monte Carlo (MC) Potts model. A two-dimensional, hexagonal lattice is used to digitize the microstructure and the components and grain orientation are distributed randomly. The periodical boundary condition is applied. In our simulation, the grain growth and coarsening process driven by the reduction of interfacial free energy within a complex system involving Vapor, Liquid and Solid phase were investigated with 257 orientations and which is denoted by different color. “1” denotes the vapor phase, “0” denotes the liquid phase and other numbers from “2” to “256” denote different solid phase. Results show: the improved model is able to obtain the right distribution of liquid and vapor, and is able to simulate solution, precipitation, sublimation, evaporation process; With different MCS, the simulated grain size distribution lines are similar, which is responsible.
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Document Type: Research Article
Publication date: September 1, 2012
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