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Determining strain in amorphous alloys: Uncertainties with analyzing structural changes during deformation

TitleDetermining strain in amorphous alloys: Uncertainties with analyzing structural changes during deformation
Publication TypeJournal Article
Year of Publication2009
AuthorsMendelev MI, Ott RT, Kramer MJ, Sordelet DJ
Journal TitleJournal of Applied Physics
Volume105
Pages023509
Date Published01/15
ISBN Number0021-8979
Accession NumberISI:000262970900026
Keywordsamorphous state, deformation, interatomic potentials, molecular dynamics method, noncrystalline structure
Abstract

Molecular dynamics simulations were utilized to test the reliability of strain values obtained from diffraction data for noncrystalline alloys. We found that in the case of a one-component system, the strain value obtained from the pair correlation functions underestimates the actual value because of a small degree of atomic relaxations, which minimize the effects of the applied deformation. In the case of multicomponent systems, the different pairs are affected by applied deformation to different extents; moreover, this implies that the strain value determined from diffraction data should depend on the type of scattering.
URL<Go to ISI>://000262970900026
DOI10.1063/1.3068306