Effect of Interface on the Deformation of Aluminium Bicrystal: Atomistic Simulation Study
SH Yan and BB Xing and QH Qin, 2016 INTERNATIONAL CONFERENCE ON DESIGN, MECHANICAL AND MATERIAL ENGINEERING (D2ME 2016), 82, UNSP 02010 (2016).
Molecular dynamic (MD) simulation has been conducted to study the effect of interface structure on the mechanical response of eight <110> symmetric tilt grain boundaries in high stacking-fault Al. It is found that the grain boundaries with E structure unit (SU) have higher energy, but the grain boundary energy alone cannot be used as a parameter to determine the mechanical properties of grain boundary. The SUs, especially E units, do have an influence on the mechanical response of grain boundaries. Our results show that the dislocation imitates from E units preferably, but this depends on the dissociation at grain boundary.
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