Evolution of microstructures and textures in magnesium AZ31 alloys deformed by normal and cross-roll rolling

Normal and cross-roll rolling were compared for commercial AZ31 magnesium alloy sheets, where the roll axis was tilted by 7.5° against TD in the RD–TD plane. In the cross-rolled specimens, the texture strongly developed and the through-thickness gradient of grain size and texture decreased compared...

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Bibliographic Details
Published in:Materials letters 2012-05, Vol.75, p.122-125
Main Authors: Kim, Dae-Guen, Lee, Kye-Man, Lee, Jae-Seol, Yoon, Young-Ok, Son, Hyeon-Taek
Format: Article
Language:English
Subjects:
alloys
AZ31 sheet
Cross rolling
Cross-roll rolling
Deformation
Grain size
Homogeneity
Magnesium
Magnesium base alloys
Microstructure
Surface layer
Texture
X-ray diffraction
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Summary:Normal and cross-roll rolling were compared for commercial AZ31 magnesium alloy sheets, where the roll axis was tilted by 7.5° against TD in the RD–TD plane. In the cross-rolled specimens, the texture strongly developed and the through-thickness gradient of grain size and texture decreased compared with the normally rolled specimens. The homogeneity of the texture throughout the whole thickness of the deformed sheet is a key factor in the successful deformation of Mg sheets. The texture development and corresponding microstructures were discussed in terms of the direct comparison of the normal and cross-roll rolled specimens. [Display omitted] ► Cross-roll rolling was carried out on AZ31 magnesium alloy. ► The intensity of the texture of the cross-rolled samples decreased after annealing. ► Homogeneous and fine microstructures were obtained after cross-roll rolling.
ISSN:0167-577X
1873-4979
DOI:10.1016/j.matlet.2012.01.141