skip to main content

SciTech ConnectSciTech Connect

Title: Composition mediated serration dynamics in Zr-based bulk metallic glasses

The composition mediated serration dynamics in Zr-based bulk metallic glasses (BMGs) is investigated by statistics analyses of the elastic-energy density, and free volumes during shear-banding are beneficial to understand serrated-flow behavior. The amplitude and elastic-energy density display a gradually increasing and then decreasing trend with increasing the content of Zr. It is based on the free-volume theory describing the atomic-level structure of ternary Zr-Cu-Al BMGs. The good agreement between the molecular dynamics simulation and experimental results provides evidence for the variation of free volumes as the elementary mechanism of composition mediated serration dynamics.
Authors:
; ; ;  [1] ;  [2] ;  [3] ;  [1] ;  [4]
  1. Laboratory of Applied Physics and Mechanics of Advanced Materials, College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024 (China)
  2. College of Computer Science and Technology, Taiyuan University of Technology, Taiyuan 030024 (China)
  3. Center for Advanced Structural Materials, Department of Mechanical and Biomedical Engineering, City University of Hong Kong, Kowloon Tong, Kowloon (Hong Kong)
  4. (Japan)
Publication Date:
OSTI Identifier:
22486086
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 107; Journal Issue: 20; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; AMPLITUDES; ENERGY DENSITY; METALLIC GLASSES; MOLECULAR DYNAMICS METHOD; SIMULATION; STATISTICS; VARIATIONS