Affiliation of Author(s):材料科学与技术学院
Journal:METALS
Key Words:metallic glasses yield behavior tension and compression molecular dynamics free volume
Abstract:The different deformation behaviors in the yield stage, in particular, of metallic glasses under uniaxial tension and compression are investigated from an atomic structural perspective, by applying both experimental and simulation methods. A new computational approach for quantitatively calculating free volumes (FVs) in structural models is developed, based on which the manner in which FVs contribute to deformation is studied. It is found that FVs have different expansion behaviors in terms of their saturation sizes and corresponding strain values, which are essential structural causes of different yield behaviors in these two deformations in metallic glasses.
ISSN No.:2075-4701
Translation or Not:no
Date of Publication:2017-10-01
Co-author:王鹏伟,李海洋
Correspondence Author:yangliang
Date of Publication:2017-10-01