Lattice coupled grain growth with low-angle grain boundaries

Kevin McReynolds; Kuo An Wu; Peter W Voorhees

Lattice coupled grain growth with low-angle grain boundaries

Kevin McReynolds, Kuo An Wu, Peter W Voorhees

Materials Science and Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

Grain growth is generally driven to minimize the interfacial energy. However, for low-angle grain boundaries the requirement that lattice planes be continuous across the boundary gives rise to a coupling between the normal motion of the grain boundary and the tangential motion of the lattice. We show through simulations using the phase-field crystal model, that for a circular grain embedded at a symmetric planar tilt grain boundary this coupling gives rise to a rigid body translation of the lattice as the grain shrinks. The process is mediated by significant climb of the dislocations in the boundary. The implications of these results on the motion of partially coherent two-phase interfaces are discussed.

Original language	English (US)
Title of host publication	PTM 2015 - Proceedings of the International Conference on Solid-Solid Phase Transformations in Inorganic Materials 2015
Editors	Long-Qing Chen, Matthias Militzer, Gianluigi Botton, James Howe, Chadwick Sinclair, Hatem Zurob
Publisher	International Conference on Solid-Solid Phase Transformations in Inorganic Materials 2015
Pages	773-774
Number of pages	2
ISBN (Electronic)	9780692437360
State	Published - Jan 1 2015
Event	International Conference on Solid-Solid Phase Transformations in Inorganic Materials 2015, PTM 2015 - Whistler, Canada Duration: Jun 28 2015 → Jul 3 2015

Publication series

Name	PTM 2015 - Proceedings of the International Conference on Solid-Solid Phase Transformations in Inorganic Materials 2015

Other

Other	International Conference on Solid-Solid Phase Transformations in Inorganic Materials 2015, PTM 2015
Country	Canada
City	Whistler
Period	6/28/15 → 7/3/15

Keywords

Coupling
Grain growth
Low-angle
Phase field crystal

ASJC Scopus subject areas

Chemical Engineering(all)
Inorganic Chemistry
Materials Chemistry
Metals and Alloys

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McReynolds, K., Wu, K. A., & Voorhees, P. W. (2015). Lattice coupled grain growth with low-angle grain boundaries. In L-Q. Chen, M. Militzer, G. Botton, J. Howe, C. Sinclair, & H. Zurob (Eds.), PTM 2015 - Proceedings of the International Conference on Solid-Solid Phase Transformations in Inorganic Materials 2015 (pp. 773-774). (PTM 2015 - Proceedings of the International Conference on Solid-Solid Phase Transformations in Inorganic Materials 2015). International Conference on Solid-Solid Phase Transformations in Inorganic Materials 2015.

McReynolds, Kevin ; Wu, Kuo An ; Voorhees, Peter W. / Lattice coupled grain growth with low-angle grain boundaries. PTM 2015 - Proceedings of the International Conference on Solid-Solid Phase Transformations in Inorganic Materials 2015. editor / Long-Qing Chen ; Matthias Militzer ; Gianluigi Botton ; James Howe ; Chadwick Sinclair ; Hatem Zurob. International Conference on Solid-Solid Phase Transformations in Inorganic Materials 2015, 2015. pp. 773-774 (PTM 2015 - Proceedings of the International Conference on Solid-Solid Phase Transformations in Inorganic Materials 2015).

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abstract = "Grain growth is generally driven to minimize the interfacial energy. However, for low-angle grain boundaries the requirement that lattice planes be continuous across the boundary gives rise to a coupling between the normal motion of the grain boundary and the tangential motion of the lattice. We show through simulations using the phase-field crystal model, that for a circular grain embedded at a symmetric planar tilt grain boundary this coupling gives rise to a rigid body translation of the lattice as the grain shrinks. The process is mediated by significant climb of the dislocations in the boundary. The implications of these results on the motion of partially coherent two-phase interfaces are discussed.",

keywords = "Coupling, Grain growth, Low-angle, Phase field crystal",

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language = "English (US)",

series = "PTM 2015 - Proceedings of the International Conference on Solid-Solid Phase Transformations in Inorganic Materials 2015",

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booktitle = "PTM 2015 - Proceedings of the International Conference on Solid-Solid Phase Transformations in Inorganic Materials 2015",

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McReynolds, K, Wu, KA & Voorhees, PW 2015, Lattice coupled grain growth with low-angle grain boundaries. in L-Q Chen, M Militzer, G Botton, J Howe, C Sinclair & H Zurob (eds), PTM 2015 - Proceedings of the International Conference on Solid-Solid Phase Transformations in Inorganic Materials 2015. PTM 2015 - Proceedings of the International Conference on Solid-Solid Phase Transformations in Inorganic Materials 2015, International Conference on Solid-Solid Phase Transformations in Inorganic Materials 2015, pp. 773-774, International Conference on Solid-Solid Phase Transformations in Inorganic Materials 2015, PTM 2015, Whistler, Canada, 6/28/15.

Lattice coupled grain growth with low-angle grain boundaries. / McReynolds, Kevin; Wu, Kuo An; Voorhees, Peter W.

PTM 2015 - Proceedings of the International Conference on Solid-Solid Phase Transformations in Inorganic Materials 2015. ed. / Long-Qing Chen; Matthias Militzer; Gianluigi Botton; James Howe; Chadwick Sinclair; Hatem Zurob. International Conference on Solid-Solid Phase Transformations in Inorganic Materials 2015, 2015. p. 773-774 (PTM 2015 - Proceedings of the International Conference on Solid-Solid Phase Transformations in Inorganic Materials 2015).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

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T1 - Lattice coupled grain growth with low-angle grain boundaries

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AU - Wu, Kuo An

AU - Voorhees, Peter W

PY - 2015/1/1

Y1 - 2015/1/1

N2 - Grain growth is generally driven to minimize the interfacial energy. However, for low-angle grain boundaries the requirement that lattice planes be continuous across the boundary gives rise to a coupling between the normal motion of the grain boundary and the tangential motion of the lattice. We show through simulations using the phase-field crystal model, that for a circular grain embedded at a symmetric planar tilt grain boundary this coupling gives rise to a rigid body translation of the lattice as the grain shrinks. The process is mediated by significant climb of the dislocations in the boundary. The implications of these results on the motion of partially coherent two-phase interfaces are discussed.

AB - Grain growth is generally driven to minimize the interfacial energy. However, for low-angle grain boundaries the requirement that lattice planes be continuous across the boundary gives rise to a coupling between the normal motion of the grain boundary and the tangential motion of the lattice. We show through simulations using the phase-field crystal model, that for a circular grain embedded at a symmetric planar tilt grain boundary this coupling gives rise to a rigid body translation of the lattice as the grain shrinks. The process is mediated by significant climb of the dislocations in the boundary. The implications of these results on the motion of partially coherent two-phase interfaces are discussed.

KW - Coupling

KW - Grain growth

KW - Low-angle

KW - Phase field crystal

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McReynolds K, Wu KA, Voorhees PW. Lattice coupled grain growth with low-angle grain boundaries. In Chen L-Q, Militzer M, Botton G, Howe J, Sinclair C, Zurob H, editors, PTM 2015 - Proceedings of the International Conference on Solid-Solid Phase Transformations in Inorganic Materials 2015. International Conference on Solid-Solid Phase Transformations in Inorganic Materials 2015. 2015. p. 773-774. (PTM 2015 - Proceedings of the International Conference on Solid-Solid Phase Transformations in Inorganic Materials 2015).