The Roles of Grain Boundary Energy Anisotropy and Second-Phase Particles on Grain Growth in Polycrystalline Materials
A phase-field model was developed to investigate the concurrent effects of grain boundary energy anisotropy and second-phase particles on grain growth in polycrystalline materials. The phase-field model was developed based on the evolution of non-conserved phase-field variables according to the time-dependent Ginzburg-Landau (TDGL) equation. The Read-Shockley and modified Read-Shockley models for cubic crystals were considered to include anisotropic grain boundary energies for low and high misorientation angels between adjacent grains. Systems without particles reach a steady state grain growth rate. The presence of particles significantly alters the microstructures during grain growth. Results show that for systems with particles, the critical average grain size to stop grain growth depends on both the volume fraction and size of particles and also on the grain boundary energy anisotropy.
M. Asle Zaeem et al., "The Roles of Grain Boundary Energy Anisotropy and Second-Phase Particles on Grain Growth in Polycrystalline Materials," Proceedings of the IMETI 2011 - 4th International Multi-Conference on Engineering and Technological Innovation (2011, Orlando, FL), vol. 1, pp. 180-182, International Institute of Informatics and Systemics, Jul 2011.
4th International Multi-Conference on Engineering and Technological Innovation (2011: Jul. 19-22, Orlando, FL)
Materials Science and Engineering
Keywords and Phrases
Anisotropic grains; Average grain size; Cubic crystal; Grain-boundary energy; Mis-orientation; Phase-field modeling; Second phase particles; Time-dependent Ginzburg-Landau equation; Anisotropy; Finite element method; Grain boundaries; Polycrystalline materials; Grain growth; Anisotropic grain boundary energy; Grain growth
International Standard Book Number (ISBN)
Article - Conference proceedings
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