| 초록 |
This study examined a fundamental issue as to if a compressive elastostatic loading can induce microscopic structural change of amorphous alloys. It was found that the elastic strain of amorphous alloys consisted of the strain components characterized by ideal elasticity, anelasticity, and viscoelasticity depending on their deformation characteristics. Among the strain components, viscoelasticity caused irreversible structural changes even after removing the applied stress. With the application of elastostatic loading, the plasticity of the pre-loaded amorphous alloy increased, while the yield strength decreased. These behaviors were analyzed using HRTEM and DSC from the perspective of the microsturctural changes characterized by the free volume generation. |
