Localization of plastic deformation along shear bands in Vitreloy bulk metallic glass during high pressure torsion

Author(s)
Zsolt Kovacs, Erhard Schafler, Peter Szommer, Adam Revesz
Abstract

Microscopic plastic behavior of high purity commercial Vitreloy 1b glassy disks subjected to high pressure torsion was investigated by analyzing the distortion of a marker grid produced by focused ion beam milling. Scanning electron microscopy and atomic force microscopy are applied to measure offsets of shear bands at the surface. Unlike in other macroscopic deformation tests, short and wavy shear bands with submicron offsets and substantial normal offset components are observed indicating concurrent formation of numerous bands. Material pile-ups along major shear bands result in healing of the glass counterparts.

Organisation(s)
Physics of Nanostructured Materials
External organisation(s)
Eötvös Loránd University Budapest
Journal
Journal of Alloys and Compounds
Volume
593
Pages
207-212
No. of pages
6
ISSN
0925-8388
DOI
https://doi.org/10.1016/j.jallcom.2014.01.079
Publication date
04-2014
Peer reviewed
Yes
Austrian Fields of Science 2012
103018 Materials physics
Keywords
ASJC Scopus subject areas
Mechanics of Materials, Mechanical Engineering, Metals and Alloys, Materials Chemistry
Portal url
https://ucris.univie.ac.at/portal/en/publications/localization-of-plastic-deformation-along-shear-bands-in-vitreloy-bulk-metallic-glass-during-high-pressure-torsion(cb648de0-7593-46bd-98b8-610db524884c).html