Texture evolution during dynamic recrystallization in a magnesium alloy at 450°C

During thermomechanical processing of wrought magnesium alloys, the microstructure and texture continue to evolve as dynamic recrystallization (DRX) proceeds. New grains generated by DRX with a low dislocation density also participate in the texture evolution as the strain increases. However, the co...

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Bibliographic Details
Published in:Acta materialia 2014-04, Vol.67, p.102-115
Main Authors: Ma, Q., Li, B., Whittington, W.R., Oppedal, A.L., Wang, P.T., Horstemeyer, M.F.
Format: Article
Language:English
Subjects:
Applied sciences
Dynamic recrystallization
Exact sciences and technology
Magnesium
Metals. Metallurgy
Slip
Texture
Twinning
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Summary:During thermomechanical processing of wrought magnesium alloys, the microstructure and texture continue to evolve as dynamic recrystallization (DRX) proceeds. New grains generated by DRX with a low dislocation density also participate in the texture evolution as the strain increases. However, the controlling mechanisms that drive the evolution are not yet understood. In this work, we studied texture evolution in an extruded Mg–Al–Mn alloy (AM30) during uniaxial compression at 450°C and under various strain rates (ε̇
ISSN:1359-6454
1873-2453
DOI:10.1016/j.actamat.2013.12.025