Texture Evolution of Mg during High-Pressure Torsion

Author(s)
Bartlomiej Bonarski, Erhard Schafler, Bernhard Mingler, Werner Skrotzki, Boris Mikulowski, Michael Zehetbauer
Abstract

Polycrystalline magnesium of 99.8 wt.% purity

was subjected to high-pressure torsion (HPT) at room

temperature. A special technique was developed in order to

enable HPT of Mg up to very high shear strains of 115 and

hydrostatic pressures of 4 GPa. The texture development

during HPT was investigated by systematic X-ray texture

measurements. It can be described by a stationary oblique

B fibre characteristic of hexagonal metals subjected to

simple shear. From the measured shear strain and pressure

dependences of the B fibre and from microstructure

investigations by TEM, it is concluded that also mechanisms

of both dynamic and of static recrystallization

contribute to the texture evolution.

Organisation(s)
Physics of Nanostructured Materials
External organisation(s)
Technische Universität Dresden, AGH University of Science and Technology
Journal
Journal of Materials Science
Volume
43
Pages
7513-7518
No. of pages
6
ISSN
0022-2461
DOI
https://doi.org/10.1007/s10853-008-2794-8
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-mg-during-highpressure-torsion(a3598d40-8f51-4c10-aed2-591f4cf176d9).html