Journal
JOURNAL OF ALLOYS AND COMPOUNDS
Volume 656, Issue -, Pages 272-277Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2015.09.155
Keywords
Magnesium alloy; Rapid thermal annealing; Recrystallization; Texture
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Funding
- National Natural Science Foundation of China [51104016]
- National High Technology Research and Development Program (863 Program) of China [2013AA032402]
- State Key Laboratory of Advanced Technologies for Comprehensive Utilization of Platinum Metals [SKL-SPM-201204]
- Opening Research Foundation of State Key Laboratory for Advanced Metals and Materials [2007AMM001]
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The recrystallized microstructure and texture of AZ31 Mg alloy after rapid thermal annealing (RTA) was investigated. A mathematical model of RTA temperature of AZ31 Mg alloy was established based on the thermal equilibrium theory. The two double-peak textures with basal poles tilted 5-10 degrees away from the normal direction towards the rolling direction or towards the transverse direction were formed in the AZ31 alloy during RTA. The tilted basal texture was originated from recrystallized grains formed along grain boundaries for the low rolling reduction or recrystallized grains formed within the shear bands and twins for the high rolling reduction. During RTA, the recrystallization mechanism was sensitive to the previous rolling reduction and the annealing temperature, and the mechanisms of the microstructure and texture evolution of the AZ31 alloy during RTA were discussed. (C) 2015 Elsevier B.V. All rights reserved.
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