Journal
APPLIED PHYSICS LETTERS
Volume 93, Issue 15, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.2998410
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Funding
- National Science Foundation of China [50704037, 50721003]
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In order to identify key physical factor controlling the deformation and fracture behavior of bulk metallic glasses (BMGs), we compiled and analyzed the elastic moduli and compressive ductility for BMGs. In addition, new modulus data were generated in the critical ranges in order to facilitate the analysis. We have found that the intrinsic ductility of BMGs can be correlated with the bulk-to-shear modulus ratio B/G according to Pugh's [Philos. Mag. 45, 823 (1954)] rule. In some individual BMG systems, for example, Fe based, the relationship seems to be very clear. The physical meaning of this correlation is discussed in terms of atomic bonding and connectivity. (c) 2008 American Institute of Physics.
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