The role of configurational disorder on plastic and dynamic deformation in Cu64Zr36metallic glasses: A molecular dynamics analysis

S. D. Feng, Kang Cheung Chan, S. H. Chen, L. Zhao, R. P. Liu

Research output: Journal article publicationJournal articleAcademic researchpeer-review

18 Citations (Scopus)

Abstract

The varying degrees of configurational disorder in metallic glasses are investigated quantitatively by molecular dynamics studies. A parameter, the quasi-nearest atom, is used to characterize the configurational disorder in metallic glasses. Our observations suggest configurational disorder play a role in structural heterogeneity, plasticity and dynamic relaxations in metallic glasses. The broad configurational disorder regions distribution is the indicator of abundant potential deformation units and relaxations. Plastic flow, as well as relaxation, is believed to start at configurational disorder regions. The width of the shear bands and dynamic relaxations can then be regulated by the degree of configurational disorder regions in metallic glasses.
Original languageEnglish
Article number40969
JournalScientific Reports
Volume7
DOIs
Publication statusPublished - 19 Jan 2017

ASJC Scopus subject areas

  • General

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