The present work incorporates an implementation of the two dimensional, Q-state Monte Carlo method to evaluate anisotropic grain growth in two-phase nanocrystalline/amorphous systems. Specifically, anisotropic grain boundaries are simulated via the use of surface energies and binding energies; the former attributable to the variation in grain orientation and assigned through a mapping process involving Wulff plots. The secondary, amorphous phase is randomly assigned to the lattice in accordance with a specified initial volume fraction. Among other findings, the results reveal that the grain boundary surface energy, as governed by the shape of the Wulff plot, plays a critical role in the resulting microstructure. Additionally, it was found that the addition of a secondary amorphous phase to an existing anisotropic grain boundary system evolves into primary grain microstructures characteristic of single phase isotropic systems.
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U.S. Army Engineer Research
and Development Center,
Vicksburg, MS 39180
e-mail: jeffrey.b.allen@erdc.dren.mil
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July 2014
Research-Article
Simulations of Anisotropic Grain Growth Involving Two-Phase Nanocrystalline/Amorphous Systems Using Q-State Monte Carlo
J. B. Allen
U.S. Army Engineer Research
and Development Center,
Vicksburg, MS 39180
e-mail: jeffrey.b.allen@erdc.dren.mil
J. B. Allen
Information Technology Laboratory
,U.S. Army Engineer Research
and Development Center,
3909 Halls Ferry Road
,Vicksburg, MS 39180
e-mail: jeffrey.b.allen@erdc.dren.mil
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J. B. Allen
Information Technology Laboratory
,U.S. Army Engineer Research
and Development Center,
3909 Halls Ferry Road
,Vicksburg, MS 39180
e-mail: jeffrey.b.allen@erdc.dren.mil
Contributed by the Materials Division of ASME for publication in the JOURNAL OF ENGINEERING MATERIALS AND TECHNOLOGY. Manuscript received January 31, 2014; final manuscript received March 24, 2014; published online April 30, 2014. Assoc. Editor: Irene Beyerlein.
J. Eng. Mater. Technol. Jul 2014, 136(3): 031004 (7 pages)
Published Online: April 30, 2014
Article history
Received:
January 31, 2014
Revision Received:
March 24, 2014
Citation
Allen, J. B. (April 30, 2014). "Simulations of Anisotropic Grain Growth Involving Two-Phase Nanocrystalline/Amorphous Systems Using Q-State Monte Carlo." ASME. J. Eng. Mater. Technol. July 2014; 136(3): 031004. https://doi.org/10.1115/1.4027323
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