Deformation in Metallic Glasses Studied by Synchrotron X-Ray Diffraction

摘要: High mechanical strength is one of the superior properties metallic glasses which render them promising as a structural material. However, understanding process deformation in strongly disordered matter, such glass, exceedingly difficult because even an effort to describe structure qualitatively hampered by absence crystalline periodicity. In spite challenges, we demonstrate that high-energy synchrotron X-ray diffraction measurement under stress, using two-dimensional detector coupled with anisotropic pair-density function (PDF) analysis, has greatly facilitated unraveling complex atomic rearrangements involved elastic, anelastic, and plastic glasses. Even though PDF only provides information on correlation between two atoms not many-body correlations, are often necessary elucidating various properties, stress means exciting system can garner rich nature local during