Influence of initial texture on rolling and annealing textures of Mg–3Al–1Zn alloy sheets processed by high temperature rolling

► AZ31 alloy sheets with initial strong and weak textures were rolled at 798K. ► Initial strong texture leads to basal peak splitting during annealing. ► The texture change may be related to enhanced pyramidal 〈c+a〉 slip. The Mg–3Al–1Zn magnesium alloy sheets rolled at 573 and 798K characterized by...

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Bibliographic Details
Published in:Journal of alloys and compounds 2012-10, Vol.537, p.80-86
Main Authors: Huang, Xinsheng, Suzuki, Kazutaka, Chino, Yasumasa, Mabuchi, Mamoru
Format: Article
Language:English
Subjects:
Cold working, work hardening
annealing, quenching, tempering, recovery, and recrystallization
textures
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Cross-disciplinary physics: materials science
rheology
Exact sciences and technology
Magnesium alloy
Materials science
Microstructure
Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation
Other interactions of matter with particles and radiation
Physics
Positron annihilation
Recrystallization
Rolling
Texture
Treatment of materials and its effects on microstructure and properties
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Summary:► AZ31 alloy sheets with initial strong and weak textures were rolled at 798K. ► Initial strong texture leads to basal peak splitting during annealing. ► The texture change may be related to enhanced pyramidal 〈c+a〉 slip. The Mg–3Al–1Zn magnesium alloy sheets rolled at 573 and 798K characterized by strong and weak basal textures, respectively, were further subjected by a single high temperature rolling pass at 798K. The sheet rolled only at 798K throughout rolling exhibits a double peak texture in both of as-rolled and annealed conditions. By contrast, for the sheet rolled at 573 and 798K, the reduction rate of basal texture intensity is larger and the single peak of the rolling texture changes to the double peak with basal poles largely tilting in the RD at ∼20° after annealing, which is rarely observed in wrought magnesium alloys. This phenomenon is resulted from static recrystallization and may be related to enhanced pyramidal 〈c+a〉 slip during high temperature rolling due to the initial strong basal texture.
ISSN:0925-8388
1873-4669
DOI:10.1016/j.jallcom.2012.05.002