Nanoscale Structure and Structural Relaxation in Zr50Cu45Al5 Bulk Metallic Glass
- Hwang, Jinwoo
- Melgarejo, Z. H.
- Kalay, Y. E.
- Kalay, I.
- Kramer, Matthew J.
- Stone, D. S.
- Voyles, P. M.
Publication date
January 2012
DOI Publisher
DigitalCommons@University of Nebraska - Lincoln ISSN
0031-9007 Language
EnglishAbstract
Hybrid reverse Monte Carlo simulations of the structure of Zr50Cu45Al5 bulk metallic glass incorporating medium-range structure from fluctuation electron microscopy data and short-range structure from an embedded atom potential produce structures with significant fractions of icosahedral- and crystal-like atomic clusters. Similar clusters group together into nanometer-scale regions, and relaxation transforms crystal-like clusters into icosahedral clusters. A model refined against only the potential does not agree with the fluctuation microscopy data and contains few crystal-like clusters
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