|About this Abstract
||2016 TMS Annual Meeting & Exhibition
||Magnesium Technology 2016
||Effect of Dynamic Recrystallization on Microstructure Evolution and Texture Weakening During Annealing of High Speed Rolled AZ31 Magnesium Alloy Sheets
||Jing Su, Mehdi Sanjari, Abu Syed Humaun Kabir, In-Ho Jung, Stephen Yue
|On-Site Speaker (Planned)
The microstructure and texture evolutions of low temperature rolled AZ31 Mg alloy sheets during annealing were investigated. The sheets were rolled at a low temperature of 100℃ to different reductions from 8% to 72% by high speed rolling of 1000m/min (HSR) and to reductions from 8% to 30% by low speed rolling of 15m/min (LSR). Annealing was then conducted at temperatures from 200℃ to 500℃ for different times. The microstructure was characterized by optical microscopy and scanning electron microscopy (SEM), while the texture was analyzed by X-ray diffraction and electron backscattered diffraction (EBSD) techniques. Texture weakening was found during annealing in the specimens subjected to both HSR and LSR. Texture weakening was limited when dynamic recrystallization appeared in the as-rolled structures; texture strengthened occurred in the fully dynamic recrystallized specimen during annealing. Effect of rolling speed and annealing temperature on texture weakening was investigated in this study.
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