Browse > Article

Free Volume Formation in Amorphous Alloys: a Molecular Dynamics Study  

Lee, Chang-Myeon (Department of Materials Science and Engineering, Korea University)
Park, Kyoung-Won (Department of Materials Science and Engineering, Korea University)
Lee, Byeong-Joo (Department of Materials Science and Engineering, POSTECH)
Shim, Jae-Hyeok (Materials Science and Technology Division, KIST)
Lee, Jae-Hoon (Advanced Materials Division, Korea Institute of Industrial Technology)
Lee, Jae-Chul (Department of Materials Science and Engineering, Korea University)
Publication Information
Korean Journal of Metals and Materials / v.46, no.11, 2008 , pp. 701-707 More about this Journal
Abstract
This study examined the creation mechanism of free volume during homogeneous deformation induced by the elastostatic compression at room temperature. Experiments demonstrated that amorphous alloys subjected to the elastostatic compression underwent structural disordering, during which densely packed polyhedra breakdown to form new, loosely packed ones, resulting in the creation of excess free volume. A combination of experiments and molecular dynamics simulations are used to explore fundamental issues on how free volume is created during elastostatic compression.
Keywords
amorphous alloys; free volume; structural disorder; molecular dynamics;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
Times Cited By SCOPUS : 2
연도 인용수 순위
1 M. L. Falk, Phys. Rev. B 60, 7062 (1999)
2 C. A. Schuh, A. C. Lund and T. G. Nieh, Acta Mater. 52, 5879 (2004)   DOI   ScienceOn
3 C. M. Lee, S. Y. Shin, N. J. Kim and J. C. Lee, J. Kor. Inst. Met. & Mater. 45, 203 (2007)
4 M. Heggen, F. Spaepen and M. Feuerbacher, J. Appl. Phys. 97, 033506 (2005)   DOI   ScienceOn
5 S. C. Lee, C. M. Lee, J. C. Lee, H. J. Kim, Y. Shibutani, E. Fleury and M. L. Falk, Appl. Phys. Lett. 92, 151906 (2008)   DOI   ScienceOn
6 Y. Shi, M. B. Katz, H. Li, and Mi. L. Falk, Phys. Rev. B 75, 174443 (2007)
7 M. Wakeda, Y. Shibutani, S. Ogata and J. Y. Park, Intermetallics 15, 139 (2007)   DOI   ScienceOn
8 M. L. Falk and J. S. Langer, Phys. Rev. E 57, 7192 (1998)
9 D. Deng, A.S. Argon and S.Yip Phil. Trans. R. Soc. Lond. A 329, 613 (1989)
10 A. S. Argon, Acta Metall. 27, 47 (1979)   DOI   ScienceOn
11 Y. M. Kim and B. J. Lee, J. Materials Research 23, 1095 (2008)   DOI   ScienceOn
12 S. Ogata, F. Shimizu, J. Li, M. Wakeda and Y. Shibutani, Intermetallics 14, 1033 (2006)   DOI   ScienceOn
13 F. Spaepen, Acta Metall. 25, 407 (1977)   DOI   ScienceOn
14 F. M. Richards J. Mol. Biol. 82, 1 (1974)   DOI
15 K. W. Park, M. Wakeda, Y. Shibutani and J. C. Lee, J. Kor. Inst. Met. & Mater. 45, 663 (2007)
16 D. Deng, A.S. Argon and S.Yip Phil. Trans. R. Soc. Lond. A 329, 549 (1989)
17 A. Van den Beukel and J. Sietsma, Acta Mater. 38, 383 (1990)   DOI   ScienceOn