ЗЕРНОГРАНИЧНОЕ ПРОСКАЛЬЗЫВАНИЕ И МИГРАЦИЯ СПЕЦИАЛЬНЫХ ГРАНИЦ ЗЕРЕН В БИКРИСТАЛЛАХ AL. АТОМИСТИЧЕСКОЕ МОДЕЛИРОВАНИЕ

Resultado de pesquisa: Articlerevisão de pares

Resumo

The energy of grain boundary shears is calculated for symmetric grain boundaries (GBs) using ab initio methods and molecular-dynamic modeling in order to elucidate mechanisms that control GB shear-migration coupling in typical symmetric GBs, such as Σ3 (111), Σ5 (012), Σ5 (013) and Σ11 (113) tilt GBs, in Al bicrystal. The energy of generalized grain-boundary stacking faults (GB–SF) is determined, and the preferred directions and the energy barrier are established for grain-boundary slippage. It is shown that the relative slippage of neighboring grains at certain directions of particle shears is accompanied by conservative migration of GB in the direction perpendicular to its plain. The modeling data are comparative to known grain-boundary shear-migration coupling mechanisms in Al.
Título traduzido da contribuiçãoGrain-Boundary Shear-Migration Coupling in Al Bicrystals. Atomistic Modeling
Idioma originalRussian
Páginas (de-até)1874-1881
Número de páginas7
RevistaФизика твердого тела
Volume60
Número de emissão10
DOIs
Estado da publicaçãoPublished - 2018

GRNTI

  • 29.00.00 PHYSICS

Level of Research Output

  • VAK List

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