Physical factors controlling the ductility of bulk metallic glasses

Liu, Y. and Wu, H. and Liu, C. T. and Zhang, Z. and Keppens, V. (2008) Physical factors controlling the ductility of bulk metallic glasses. Applied Physics Letters, 93 (15). p. 151915. DOI 10.1063/1.2998410

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Abstract

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.

Item Type: Article
Uncontrolled Keywords: NILAREP
Subjects: 03 - Mineral Sciences
Divisions: 03 - Mineral Sciences
Journal or Publication Title: Applied Physics Letters
Volume: 93
Page Range: p. 151915
Identification Number: 10.1063/1.2998410
Depositing User: Sarah Humbert
Date Deposited: 06 Jul 2011 10:32
Last Modified: 23 Jul 2013 10:02
URI: http://eprints.esc.cam.ac.uk/id/eprint/2110

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