| 학회 |
한국재료학회 |
| 학술대회 |
2008년 봄 (05/22 ~ 05/23, 상록리조트) |
| 권호 |
14권 1호 |
| 발표분야 |
구조재료 |
| 제목 |
The structural change rate of amorphous alloys under elastostatic compression |
| 초록 |
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. It was found that elastostatic stress imposed on amorphous alloys for a prolonged time induces permanent structural change, whose rate largely depends on their atomic packing density characterized by the fractions of various short-range ordered (SRO) clusters. This structural change was accompanied by the formation of excess free volume, which in turn affected the mechanical properties in subsequent compression tests. These findings were analyzed using a combined technique consisting of experiments and molecular dynamics simulations in view of the atomistic-scale structural changes. |
| 저자 |
박경원1, 이창면1, 유병길2, 장재일2, Wakeda Masato3, Shibutani Yoji3, 이재철1
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| 소속 |
1고려대, 2한양대, 3오사카대 |
| 키워드 |
amorphous alloy; structural change; atomic packing density; SRO clusters
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| E-Mail |
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