Analysis of the elastic strain energy driving force for grain boundary migration using phase field simulation
2010; Elsevier BV; Volume: 63; Issue: 11 Linguagem: Inglês
10.1016/j.scriptamat.2010.07.034
ISSN1872-8456
AutoresMichael Tonks, Paul C. Millett, Wei Cai, D. Wolf,
Tópico(s)Microstructure and mechanical properties
ResumoWe 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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