Nanoscale Structure and Relaxation in Zr50Cu45Al5 Bulk Metallic Glass

File(s)
Date
2012-05-11Author
Voyles, P. M.
Stone, D. S.
Kramer, M. J.
Kalay, I.
Kalay, Y. E.
Melgarejo, Z. H.
Hwang, Jinwoo
Metadata
Show full item recordAbstract
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.
Subject
medium range order
metallic glass
fluctuation electron microscopy
Permanent Link
http://digital.library.wisc.edu/1793/63384Type
Article
Description
http://dx.doi.org/10.1103/PhysRevLett.108.195505
Citation
Physical Review Letters 108, 195505 (2012)