Zr-Cu系アモルファス合金のせん断変形挙動のひずみ速度依存性

抄録

Most study of molecular dynamics (MD) simulation on deformation of amorphous alloy have been performed on a viewpoint of plastic deformation of solid. They lack a viewpoint of liquid, namely viscosity. In present study, to clarify both viewpoints, the shear deformation of Zr₅₀Cu₅₀ amorphous alloy is simulated by molecular dynamics method. The shear strain rate is from 0.125 to 4.000 /ns. Thermodynamic quantities, viscosity, shear stress and rigidity are analyzed from simulated data.