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

Abstract:

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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.

Info:

Periodical:

Materials Science Forum (Volumes 584-586)

Edited by:

Yuri Estrin and Hans Jürgen Maier

Pages:

263-268

DOI:

10.4028/www.scientific.net/MSF.584-586.263

Citation:

B. J. Bonarski et al., "Texture Evolution of Magnesium Single Crystals Deformed by High-Pressure Torsion ", Materials Science Forum, Vols. 584-586, pp. 263-268, 2008

Online since:

June 2008

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Price:

$35.00

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