Anisotropic atomic structure in a homogeneously deformed metallic glass

TitleAnisotropic atomic structure in a homogeneously deformed metallic glass
Publication TypeJournal Article
Year of Publication2007
AuthorsKramer MJ, Ott RT, Sordelet DJ
Journal TitleJournal of Materials Research
Volume22
Pages382-388
Date PublishedFeb
Type of ArticleArticle
ISBN Number0884-2914
Accession NumberISI:000244210800017
Keywordsdeformation, EXCESS FREE-VOLUME, x-ray-diffraction
Abstract

The anisotropic atomic structure in a Zr41.2Ti13.8Cu12.5Ni10Be22.5 metallic glass strained during uniaxial tensile creep at 598 K was studied at room temperature using high-energy x-ray diffraction. Changes in the atomic structure were examined by comparing the total scattering function [S(Q)] and the reduced pair distribution function [G(r)] of the creep to that of a companion specimen subjected to the same heat treatment only. Two-dimensional maps of the AS(Q) and its Fourier transformation demonstrate the distribution in the bond orientation anisotropy increases with increasing total strain. A fit of the reduced pair distribution function using a simplified two-component model suggests that the bond length changes in the deformed creep samples are not uniform.

DOI10.1557/jmr.2007.0044
Alternate JournalJ. Mater. Res.