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Title: Evolution of shear banding flows in metallic glasses characterized by molecular dynamics

Abstract

To reveal the evolution of shear banding flows, one-dimensional nanostructure metallic glass composites have been studied with molecular dynamics. The inherent size determines the initial thickness of shear bands, and the subsequent broadening can be restricted to some extent. The vortex-like flows evoke the atomic motion perpendicular to the shear plane, which accelerates the interatomic diffusion. The reduction of local strain rate causes the flow softening for monolithic Cu-Zr glass, but the participation of Cu-atoms in the shear banding flow gradually leads to the shear hardening for the composites.

Authors:
 [1];  [2]
  1. Shanghai Institute of Space Power-Sources, 2965 Dongchuan Rd., Shanghai 200245 (China)
  2. School of Materials Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Rd., Shanghai 200240 (China)
Publication Date:
OSTI Identifier:
22596813
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Applied Physics; Journal Volume: 119; Journal Issue: 23; Other Information: (c) 2016 Author(s); Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; ATOMS; COPPER; DIFFUSION; GLASS; HARDENING; METALLIC GLASSES; MOLECULAR DYNAMICS METHOD; NANOSTRUCTURES; ONE-DIMENSIONAL CALCULATIONS; SHEAR; STRAIN RATE; STRAINS; THICKNESS; VORTICES; ZIRCONIUM

Citation Formats

Yao, Li, E-mail: yltiger@sjtu.edu.cn, and Luan, Yingwei. Evolution of shear banding flows in metallic glasses characterized by molecular dynamics. United States: N. p., 2016. Web. doi:10.1063/1.4953816.
Yao, Li, E-mail: yltiger@sjtu.edu.cn, & Luan, Yingwei. Evolution of shear banding flows in metallic glasses characterized by molecular dynamics. United States. doi:10.1063/1.4953816.
Yao, Li, E-mail: yltiger@sjtu.edu.cn, and Luan, Yingwei. Tue . "Evolution of shear banding flows in metallic glasses characterized by molecular dynamics". United States. doi:10.1063/1.4953816.
@article{osti_22596813,
title = {Evolution of shear banding flows in metallic glasses characterized by molecular dynamics},
author = {Yao, Li, E-mail: yltiger@sjtu.edu.cn and Luan, Yingwei},
abstractNote = {To reveal the evolution of shear banding flows, one-dimensional nanostructure metallic glass composites have been studied with molecular dynamics. The inherent size determines the initial thickness of shear bands, and the subsequent broadening can be restricted to some extent. The vortex-like flows evoke the atomic motion perpendicular to the shear plane, which accelerates the interatomic diffusion. The reduction of local strain rate causes the flow softening for monolithic Cu-Zr glass, but the participation of Cu-atoms in the shear banding flow gradually leads to the shear hardening for the composites.},
doi = {10.1063/1.4953816},
journal = {Journal of Applied Physics},
number = 23,
volume = 119,
place = {United States},
year = {Tue Jun 21 00:00:00 EDT 2016},
month = {Tue Jun 21 00:00:00 EDT 2016}
}