부산대학교 도서관

In this study, the effect of metal interface with amorphous structure on mechanical properties is studied by molecular dynamics method. When modeling a metal interface, it is common to create the interface by adjoining separately created atomic models. In this study, atomic structures including an amorphous/amorphous interface and an amorphous/crystalline interface were created by quenching a model with Al and Cu from different temperature ranges. Then, tensile deformation simulations by molecular dynamics were performed for these models. As a result, the model with an amorphous/amorphous interface showed a uniform distribution of atomic strain regardless of the type of atoms or the interface. In the model with an amorphous/crystalline interface, dislocations in the Cu crystal were accompanied by a rapid relaxation of stress. In addition, the stress-strain diagram and the distribution of atomic strain were different depending on the crystal orientation of Cu.