Phase field crystal study of deformation and plasticity in nanocrystalline materials

Peter Stefanovic; Mikko Haataja; Nikolas Provatas

doi:10.1103/PhysRevE.80.046107

Phase field crystal study of deformation and plasticity in nanocrystalline materials

Peter Stefanovic, Mikko Haataja, Nikolas Provatas

Research output: Contribution to journal › Article › peer-review

178 Scopus citations

Abstract

We introduce a modified phase field crystal (MPFC) technique that self-consistently incorporates rapid strain relaxation alongside the usual plastic deformation and multiple crystal orientations featured by the traditional phase field crystal (PFC) technique. Our MPFC formalism can be used to study a host of important phase transformation phenomena in material processing that require rapid strain relaxation. We apply the MPFC model to study elastic and plastic deformations in nanocrystalline materials, focusing on the "reverse" Hall-Petch effect. Finally, we introduce a multigrid algorithm for efficient numerical simulations of the MPFC model.

Original language	English (US)
Article number	046107
Journal	Physical Review E - Statistical, Nonlinear, and Soft Matter Physics
Volume	80
Issue number	4
DOIs	https://doi.org/10.1103/PhysRevE.80.046107
State	Published - Oct 14 2009
Externally published	Yes

All Science Journal Classification (ASJC) codes

Condensed Matter Physics
Statistical and Nonlinear Physics
Statistics and Probability

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10.1103/PhysRevE.80.046107

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AB - We introduce a modified phase field crystal (MPFC) technique that self-consistently incorporates rapid strain relaxation alongside the usual plastic deformation and multiple crystal orientations featured by the traditional phase field crystal (PFC) technique. Our MPFC formalism can be used to study a host of important phase transformation phenomena in material processing that require rapid strain relaxation. We apply the MPFC model to study elastic and plastic deformations in nanocrystalline materials, focusing on the "reverse" Hall-Petch effect. Finally, we introduce a multigrid algorithm for efficient numerical simulations of the MPFC model.

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Phase field crystal study of deformation and plasticity in nanocrystalline materials

Abstract

All Science Journal Classification (ASJC) codes

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