分子動力学法によるMgナノツイン構造の変形機構解析

抄録

In this study, we investigate deformation modes of a magnesium (Mg) nanotwinned structure using molecular dynamics simulations. Periodic units including twin boundaries (TBs) are analyzed with equal spaces between the TBs. The space is parametrized in the range between about 5 nm and 30 nm. It is found that plastic deformation is triggered by the slip along a twinning plane near a TB, and that this event induces two different deformation modes depending on the space, i.e., the migration of the TBs and the evolution of double twinning.