Effect of the atomic packing density on the structural change rate of amorphous alloys under elastostatic stress

Kyoung Won Park, Masato Wakeda, Yoji Shibutani, Eric Fleury, Jae-chul Lee

Research output: Contribution to journalArticle

24 Citations (Scopus)

Abstract

This study deals with the fundamental issue of whether the atomistic-scale structure of amorphous alloys can be altered by the application of elastic stress. The prolonged imposition of elastostatic stress on amorphous alloys induces permanent structural change. The rate of change largely depends on the atomic packing density, which is characterized by the fractions of various short-range ordered clusters. This structural change is accompanied by the formation of excess free volume, which in turn affects the mechanical properties in subsequent compression tests. The findings of the experiments and molecular dynamics simulations were analyzed in terms of atomistic-scale structural changes.

Original languageEnglish
Pages (from-to)159-163
Number of pages5
JournalMetals and Materials International
Volume14
Issue number2
DOIs
Publication statusPublished - 2008 Apr 1

Fingerprint

elastostatics
packing density
Amorphous alloys
Elasticity
compression tests
Free volume
Molecular dynamics
mechanical properties
molecular dynamics
Mechanical properties
Computer simulation
simulation
Experiments

Keywords

  • Amorphous alloy
  • Atomic packing density
  • Short-range ordered (SRO) clusters
  • Structural change

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Effect of the atomic packing density on the structural change rate of amorphous alloys under elastostatic stress. / Park, Kyoung Won; Wakeda, Masato; Shibutani, Yoji; Fleury, Eric; Lee, Jae-chul.

In: Metals and Materials International, Vol. 14, No. 2, 01.04.2008, p. 159-163.

Research output: Contribution to journalArticle

Park, Kyoung Won ; Wakeda, Masato ; Shibutani, Yoji ; Fleury, Eric ; Lee, Jae-chul. / Effect of the atomic packing density on the structural change rate of amorphous alloys under elastostatic stress. In: Metals and Materials International. 2008 ; Vol. 14, No. 2. pp. 159-163.
@article{0b9ace5acac44d4ab8bd681dc6a47799,
title = "Effect of the atomic packing density on the structural change rate of amorphous alloys under elastostatic stress",
abstract = "This study deals with the fundamental issue of whether the atomistic-scale structure of amorphous alloys can be altered by the application of elastic stress. The prolonged imposition of elastostatic stress on amorphous alloys induces permanent structural change. The rate of change largely depends on the atomic packing density, which is characterized by the fractions of various short-range ordered clusters. This structural change is accompanied by the formation of excess free volume, which in turn affects the mechanical properties in subsequent compression tests. The findings of the experiments and molecular dynamics simulations were analyzed in terms of atomistic-scale structural changes.",
keywords = "Amorphous alloy, Atomic packing density, Short-range ordered (SRO) clusters, Structural change",
author = "Park, {Kyoung Won} and Masato Wakeda and Yoji Shibutani and Eric Fleury and Jae-chul Lee",
year = "2008",
month = "4",
day = "1",
doi = "10.3365/met.mat.2008.04.159",
language = "English",
volume = "14",
pages = "159--163",
journal = "Metals and Materials International",
issn = "1598-9623",
publisher = "Korean Institute of Metals and Materials",
number = "2",

}

TY - JOUR

T1 - Effect of the atomic packing density on the structural change rate of amorphous alloys under elastostatic stress

AU - Park, Kyoung Won

AU - Wakeda, Masato

AU - Shibutani, Yoji

AU - Fleury, Eric

AU - Lee, Jae-chul

PY - 2008/4/1

Y1 - 2008/4/1

N2 - This study deals with the fundamental issue of whether the atomistic-scale structure of amorphous alloys can be altered by the application of elastic stress. The prolonged imposition of elastostatic stress on amorphous alloys induces permanent structural change. The rate of change largely depends on the atomic packing density, which is characterized by the fractions of various short-range ordered clusters. This structural change is accompanied by the formation of excess free volume, which in turn affects the mechanical properties in subsequent compression tests. The findings of the experiments and molecular dynamics simulations were analyzed in terms of atomistic-scale structural changes.

AB - This study deals with the fundamental issue of whether the atomistic-scale structure of amorphous alloys can be altered by the application of elastic stress. The prolonged imposition of elastostatic stress on amorphous alloys induces permanent structural change. The rate of change largely depends on the atomic packing density, which is characterized by the fractions of various short-range ordered clusters. This structural change is accompanied by the formation of excess free volume, which in turn affects the mechanical properties in subsequent compression tests. The findings of the experiments and molecular dynamics simulations were analyzed in terms of atomistic-scale structural changes.

KW - Amorphous alloy

KW - Atomic packing density

KW - Short-range ordered (SRO) clusters

KW - Structural change

UR - http://www.scopus.com/inward/record.url?scp=43149121344&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=43149121344&partnerID=8YFLogxK

U2 - 10.3365/met.mat.2008.04.159

DO - 10.3365/met.mat.2008.04.159

M3 - Article

AN - SCOPUS:43149121344

VL - 14

SP - 159

EP - 163

JO - Metals and Materials International

JF - Metals and Materials International

SN - 1598-9623

IS - 2

ER -