Texture Evolution of Magnesium Single Crystals Deformed by High-Pressure Torsion

Author(s)
Bartlomiej Bonarski, Erhard Schafler, Boris Mikulowski, Michael Zehetbauer
Abstract

Single crystals of technical purity Magnesium (99.8 wt.%) of initial orientations [ ] 2 1 10 and [ ] 2 2 11 were subjected to HPT deformation at room temperature up to strains of 10. The microstructural evolution has been analyzed by X-ray microtexture investigations and by in-situ stress-strain measurements. The results can be described in terms of shear arising from HPT deformation and - with higher strains - in terms of recrystallization. In crystals with hard orientation[ ] 2 2 11 , these features occur at smaller strains than in crystals with soft orientation [ ] 2 1 10 , i.e. with higher symmetry. In general, the observed textures and strength variations are much stronger than those reported for fcc HPT deformed metals.

Organisation(s)
Physics of Nanostructured Materials
External organisation(s)
AGH University of Science and Technology
Journal
Materials Science Forum
Volume
584-586
Pages
263-268
No. of pages
6
ISSN
0255-5476
DOI
https://doi.org/10.4028/www.scientific.net/MSF.584-586.263
Publication date
2008
Peer reviewed
Yes
Austrian Fields of Science 2012
103023 Polymer physics, 210006 Nanotechnology, 103018 Materials physics
Portal url
https://ucris.univie.ac.at/portal/en/publications/texture-evolution-of-magnesium-single-crystals-deformed-by-highpressure-torsion(8b2f12a9-0ee8-4121-aa09-d404ebe69c00).html