Abstract
A transition of the deformation mode from heterogeneous, localized deformation to homogeneous deformation was observed in Zr 50Cu 40Al 10 bulk metallic glass (BMG) by giant straining using the high-pressure torsion (HPT) method. The transition is accompanied by a pronounced decrease in hardness and elastic modulus as measured by nanoindentation. Annealing of the deformed BMG resulted in the restoration of the localized deformation, hardness, and elastic modulus; thus, the transition is reversible. The observed reversible transition can be attributed to a change in the local atomic environment in the rejuvenated volume and the relaxed one.
Original language | English |
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Article number | 121914 |
Journal | Applied Physics Letters |
Volume | 101 |
Issue number | 12 |
DOIs | |
Publication status | Published - 2012 Sep 17 |
ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)