Misorientation texture development during grain growth. Part I: Simulation and experiment

Grain growth in two and three dimensions with anisotropic interfacial properties was simulated using the Monte Carlo method. The relative effects of grain boundary energy and mobility anisotropy on number- and area-weighted misorientation distribution functions (MDFs) were compared. Results indicate...

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Bibliographic Details
Published in:Acta materialia 2009-12, Vol.57 (20), p.6102-6112
Main Authors: Gruber, J., Miller, H.M., Hoffmann, T.D., Rohrer, G.S., Rollett, A.D.
Format: Article
Language:English
Subjects:
Anisotropy
Applied sciences
Exact sciences and technology
Grain boundaries
Grain growth
Metals. Metallurgy
Simulation
Texture
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Summary:Grain growth in two and three dimensions with anisotropic interfacial properties was simulated using the Monte Carlo method. The relative effects of grain boundary energy and mobility anisotropy on number- and area-weighted misorientation distribution functions (MDFs) were compared. Results indicate that energy anisotropy has a measurable effect on misorientation texture development, while mobility anisotropy does not. Qualitatively similar results are obtained in all simulations regardless of dimensionality or crystal symmetry. Microstructures with random orientation texture appear to evolve steady-state MDFs, while those with a preferred orientation do not. Experimentally measured number- and area-weighted MDFs in polycrystalline magnesia are shown to be comparable to those measured in our simulations.
ISSN:1359-6454
1873-2453
DOI:10.1016/j.actamat.2009.08.036