MOLECULAR-DYNAMICS SIMULATION OF STRUCTURAL ANISOTROPY IN GLASSY METALS

[摘要] Molecular dynamics simulations have been carried out to study the creep-induced structural anisotropy in amorphous alloys. A model binary glass structure of 2048 particles interacting via Lennard-Jones potentials was creep-deformed below its glass transition temperature. Creep-deformation resulted in the bond-orientational anisotropy (BOA) within the first nearest-neighbor shell with a large sixth-order spherical harmonic component. The BOA caused an anisotropy characterized by uniform elongation along the tensile principal axis of the creep-deformation beyond the third nearest-neighbor shell.

[发布日期] 1991-03-25

[效力级别]  Proceedings Paper