The present work incorporates a modified Q-state Monte Carlo (Potts) model to evaluate two-dimensional annealing of representative paramagnetic and diamagnetic polycrystalline materials in the presence of a magnetic field. Anisotropies in grain boundary energy, caused by differences in grain orientation (texturing), and the presence of an external magnetic field are examined in detail. In the former case, the Read–Shockley equations are used, in which grain boundary energies are computed using a low-angle misorientation approximation. In the latter case, magnetic anisotropy is simulated based on the relative orientation between the principal grain axis and the external magnetic field vector. Among other findings, the results of texture development subject to a magnetic field showed an increasing orientation distribution function (ODF) asymmetry over time, with higher intensities favoring the grains with principal axes most closely aligned with the magnetic field direction. The magnetic field also tended to increase the average grain size, which was accompanied by a corresponding decrease in the total grain boundary energy.
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October 2016
Research-Article
Simulations of Anisotropic Texture Evolution on Paramagnetic and Diamagnetic Materials Subject to a Magnetic Field Using Q-State Monte Carlo
J. B. Allen
J. B. Allen
Information Technology Laboratory,
U.S. Army Engineer Research
and Development Center,
3909 Halls Ferry Road,
Vicksburg, MS 39180-6199
e-mail: Jeffrey.B.Allen@erdc.dren.mil
U.S. Army Engineer Research
and Development Center,
3909 Halls Ferry Road,
Vicksburg, MS 39180-6199
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 39180-6199
e-mail: Jeffrey.B.Allen@erdc.dren.mil
U.S. Army Engineer Research
and Development Center,
3909 Halls Ferry Road,
Vicksburg, MS 39180-6199
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 June 16, 2015; final manuscript received June 1, 2016; published online July 19, 2016. Assoc. Editor: Said Ahzi.
This material is declared a work of the U.S. Government and is not subject to copyright protection in the United States. Approved for public release; distribution is unlimited.
J. Eng. Mater. Technol. Oct 2016, 138(4): 041012 (9 pages)
Published Online: July 19, 2016
Article history
Received:
June 16, 2015
Revised:
June 1, 2016
Citation
Allen, J. B. (July 19, 2016). "Simulations of Anisotropic Texture Evolution on Paramagnetic and Diamagnetic Materials Subject to a Magnetic Field Using Q-State Monte Carlo." ASME. J. Eng. Mater. Technol. October 2016; 138(4): 041012. https://doi.org/10.1115/1.4033908
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