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) |
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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 - 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 |
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Other
Other | International Conference on Solid-Solid Phase Transformations in Inorganic Materials 2015, PTM 2015 |
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Country/Territory | Canada |
City | Whistler |
Period | 6/28/15 → 7/3/15 |
Funding
This work was supported by the National Science Foundation through grant No. DMR 1105409.
Keywords
- Coupling
- Grain growth
- Low-angle
- Phase field crystal
ASJC Scopus subject areas
- General Chemical Engineering
- Inorganic Chemistry
- Materials Chemistry
- Metals and Alloys