Homogeneous deformation of bulk amorphous alloys during elastostatic compression and its packing density dependence

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

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

This study demonstrates that preloading via the elastostatic compression of amorphous alloys at room temperature causes permanent deformation, the degree of which was positively correlated with the atomic packing density. This deformation is characterized by homogeneous flow and is proposed to occur as a result of irreversible structural disordering, in which densely packed short-range ordered clusters break down to form new, loosely packed ones, causing the creation of free volume. The physics underlying these findings are interpreted from the molecular dynamics viewpoint.

Original languageEnglish
Pages (from-to)710-713
Number of pages4
JournalScripta Materialia
Volume59
Issue number7
DOIs
Publication statusPublished - 2008 Oct 1

Fingerprint

elastostatics
packing density
Amorphous alloys
Elasticity
Compaction
prestressing
Free volume
Molecular dynamics
Physics
breakdown
molecular dynamics
physics
causes
room temperature
Temperature

Keywords

  • Amorphous alloy
  • Atomic packing density
  • Free volume
  • Homogeneous deformation
  • Structural disordering

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Materials Science(all)
  • Metals and Alloys

Cite this

Homogeneous deformation of bulk amorphous alloys during elastostatic compression and its packing density dependence. / Park, Kyoung Won; Lee, Chang Myeon; Wakeda, Masato; Shibutani, Yoji; Fleury, Eric; Lee, Jae-chul.

In: Scripta Materialia, Vol. 59, No. 7, 01.10.2008, p. 710-713.

Research output: Contribution to journalArticle

Park, Kyoung Won ; Lee, Chang Myeon ; Wakeda, Masato ; Shibutani, Yoji ; Fleury, Eric ; Lee, Jae-chul. / Homogeneous deformation of bulk amorphous alloys during elastostatic compression and its packing density dependence. In: Scripta Materialia. 2008 ; Vol. 59, No. 7. pp. 710-713.
@article{4590d9be4bce4ea49bbb6dabc975747f,
title = "Homogeneous deformation of bulk amorphous alloys during elastostatic compression and its packing density dependence",
abstract = "This study demonstrates that preloading via the elastostatic compression of amorphous alloys at room temperature causes permanent deformation, the degree of which was positively correlated with the atomic packing density. This deformation is characterized by homogeneous flow and is proposed to occur as a result of irreversible structural disordering, in which densely packed short-range ordered clusters break down to form new, loosely packed ones, causing the creation of free volume. The physics underlying these findings are interpreted from the molecular dynamics viewpoint.",
keywords = "Amorphous alloy, Atomic packing density, Free volume, Homogeneous deformation, Structural disordering",
author = "Park, {Kyoung Won} and Lee, {Chang Myeon} and Masato Wakeda and Yoji Shibutani and Eric Fleury and Jae-chul Lee",
year = "2008",
month = "10",
day = "1",
doi = "10.1016/j.scriptamat.2008.05.033",
language = "English",
volume = "59",
pages = "710--713",
journal = "Scripta Materialia",
issn = "1359-6462",
publisher = "Elsevier Limited",
number = "7",

}

TY - JOUR

T1 - Homogeneous deformation of bulk amorphous alloys during elastostatic compression and its packing density dependence

AU - Park, Kyoung Won

AU - Lee, Chang Myeon

AU - Wakeda, Masato

AU - Shibutani, Yoji

AU - Fleury, Eric

AU - Lee, Jae-chul

PY - 2008/10/1

Y1 - 2008/10/1

N2 - This study demonstrates that preloading via the elastostatic compression of amorphous alloys at room temperature causes permanent deformation, the degree of which was positively correlated with the atomic packing density. This deformation is characterized by homogeneous flow and is proposed to occur as a result of irreversible structural disordering, in which densely packed short-range ordered clusters break down to form new, loosely packed ones, causing the creation of free volume. The physics underlying these findings are interpreted from the molecular dynamics viewpoint.

AB - This study demonstrates that preloading via the elastostatic compression of amorphous alloys at room temperature causes permanent deformation, the degree of which was positively correlated with the atomic packing density. This deformation is characterized by homogeneous flow and is proposed to occur as a result of irreversible structural disordering, in which densely packed short-range ordered clusters break down to form new, loosely packed ones, causing the creation of free volume. The physics underlying these findings are interpreted from the molecular dynamics viewpoint.

KW - Amorphous alloy

KW - Atomic packing density

KW - Free volume

KW - Homogeneous deformation

KW - Structural disordering

UR - http://www.scopus.com/inward/record.url?scp=47749128058&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=47749128058&partnerID=8YFLogxK

U2 - 10.1016/j.scriptamat.2008.05.033

DO - 10.1016/j.scriptamat.2008.05.033

M3 - Article

VL - 59

SP - 710

EP - 713

JO - Scripta Materialia

JF - Scripta Materialia

SN - 1359-6462

IS - 7

ER -