Lattice coupled grain growth with low-angle grain boundaries

Kevin McReynolds, Kuo An Wu, Peter W Voorhees

Research output: Chapter in Book/Report/Conference proceedingConference 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 languageEnglish (US)
Title of host publicationPTM 2015 - Proceedings of the International Conference on Solid-Solid Phase Transformations in Inorganic Materials 2015
EditorsLong-Qing Chen, Matthias Militzer, Gianluigi Botton, James Howe, Chadwick Sinclair, Hatem Zurob
PublisherInternational Conference on Solid-Solid Phase Transformations in Inorganic Materials 2015
Pages773-774
Number of pages2
ISBN (Electronic)9780692437360
StatePublished - Jan 1 2015
EventInternational Conference on Solid-Solid Phase Transformations in Inorganic Materials 2015, PTM 2015 - Whistler, Canada
Duration: Jun 28 2015Jul 3 2015

Publication series

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

Other

OtherInternational Conference on Solid-Solid Phase Transformations in Inorganic Materials 2015, PTM 2015
CountryCanada
CityWhistler
Period6/28/157/3/15

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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  • Cite this

    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.