Analysis of the elastic strain energy driving force for grain boundary migration using phase field simulation

Michael Tonks; Paul Millett; Wei Cai; Dieter Wolf

doi:10.1016/j.scriptamat.2010.07.034

Analysis of the elastic strain energy driving force for grain boundary migration using phase field simulation

Michael Tonks, Paul Millett, Wei Cai, Dieter Wolf

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

49 Scopus citations

Abstract

We investigate elastic energy-driven grain boundary migration in a strained copper bicrystal using an atomistically informed phase field model. In a bicrystal experiencing a uniform strain, the softer grain has a lower energy density and grows at the expense of the harder grain. In a bicrystal experiencing heterogeneous strain, the softer grain has a higher energy density, yet it still grows. Our findings suggest that the softer grain will grow, irrespective of the difference in the energy densities.

Original language	English (US)
Pages (from-to)	1049-1052
Number of pages	4
Journal	Scripta Materialia
Volume	63
Issue number	11
DOIs	https://doi.org/10.1016/j.scriptamat.2010.07.034
State	Published - Nov 2010

All Science Journal Classification (ASJC) codes

General Materials Science
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering
Metals and Alloys

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10.1016/j.scriptamat.2010.07.034

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title = "Analysis of the elastic strain energy driving force for grain boundary migration using phase field simulation",

abstract = "We investigate elastic energy-driven grain boundary migration in a strained copper bicrystal using an atomistically informed phase field model. In a bicrystal experiencing a uniform strain, the softer grain has a lower energy density and grows at the expense of the harder grain. In a bicrystal experiencing heterogeneous strain, the softer grain has a higher energy density, yet it still grows. Our findings suggest that the softer grain will grow, irrespective of the difference in the energy densities.",

author = "Michael Tonks and Paul Millett and Wei Cai and Dieter Wolf",

note = "Funding Information: The authors wish to thank Anter El-Azab of Florida State University for useful discussions on how to include the effects of stress in phase field models. This work was supported by the US Department of Energy, Office of Nuclear Energy, Advanced Modeling and Simulation program. This manuscript has been authored by Battelle Energy Alliance, LLC under Contract No. DE-AC07-05ID14517 with the US Department of Energy (INL/JOU-10-18575).",

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AU - Tonks, Michael

AU - Millett, Paul

AU - Cai, Wei

AU - Wolf, Dieter

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N2 - We investigate elastic energy-driven grain boundary migration in a strained copper bicrystal using an atomistically informed phase field model. In a bicrystal experiencing a uniform strain, the softer grain has a lower energy density and grows at the expense of the harder grain. In a bicrystal experiencing heterogeneous strain, the softer grain has a higher energy density, yet it still grows. Our findings suggest that the softer grain will grow, irrespective of the difference in the energy densities.

AB - We investigate elastic energy-driven grain boundary migration in a strained copper bicrystal using an atomistically informed phase field model. In a bicrystal experiencing a uniform strain, the softer grain has a lower energy density and grows at the expense of the harder grain. In a bicrystal experiencing heterogeneous strain, the softer grain has a higher energy density, yet it still grows. Our findings suggest that the softer grain will grow, irrespective of the difference in the energy densities.

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Analysis of the elastic strain energy driving force for grain boundary migration using phase field simulation

Abstract

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