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Texture Evolution of Mg during High-Pressure Torsion

Autor(en)

Bartlomiej Bonarski, Erhard Schafler, Bernhard Mingler, Werner Skrotzki, Boris Mikulowski, Michael Zehetbauer

Abstrakt

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(en)

Physik Nanostrukturierter Materialien

Externe Organisation(en)

Technische Universität Dresden, AGH University of Science and Technology

Journal

Journal of Materials Science

Band

Seiten

7513-7518

Anzahl der Seiten

ISSN

0022-2461

DOI

https://doi.org/10.1007/s10853-008-2794-8

Publikationsdatum

2008

Peer-reviewed

ÖFOS 2012

103023 Polymerphysik, 210006 Nanotechnologie, 103018 Materialphysik

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