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 language | English |
|---|---|
| Pages (from-to) | 159-163 |
| Number of pages | 5 |
| Journal | Metals and Materials International |
| Volume | 14 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - 2008 Apr 1 |
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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 journal › Article
}
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 -