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

Autor(en)

Bartlomiej Bonarski, Erhard Schafler, Boris Mikulowski, Michael Zehetbauer

Abstrakt

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(en)

Physik Nanostrukturierter Materialien

Externe Organisation(en)

AGH University of Science and Technology

Journal

Materials Science Forum

Band

584-586

Seiten

263-268

Anzahl der Seiten

6

ISSN

0255-5476

DOI

https://doi.org/10.4028/www.scientific.net/MSF.584-586.263

Publikationsdatum

2008

Peer-reviewed

Ja

ÖFOS 2012

103023 Polymerphysik, 210006 Nanotechnologie, 103018 Materialphysik

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/8b2f12a9-0ee8-4121-aa09-d404ebe69c00