Unveiling the Local Atomic Arrangements in the Shear Band Regions of Metallic Glass.

ABSTRACT: The prospective applications of metallic glasses are limited by their lack of ductility, attributed to shear banding inducing catastrophic failure. A concise depiction of the local atomic arrangement (local atomic packing and chemical short-range order), induced by shear banding, is quintessential to understand the deformation mechanism, however still not clear. An explicit view of the complex interplay of local atomic structure and chemical environment is presented by mapping the atomic arrangements in shear bands (SBs) and in their vicinity in a deformed Vitreloy 105 metallic glass, using the scanning electron diffraction pair distribution function and atom probe tomography. The results experimentally prove that plastic deformation causes a reduction of geometrically favored polyhedral m

SUBMITTER: Mu X 

PROVIDER: S-EPMC11468532 | biostudies-literature | 2021 Mar

REPOSITORIES: biostudies-literature