In this work, advanced capabilities of electron backscatter diffraction (EBSD) were applied to evaluate the role played dynamic recrystallization during superplastic deformation of a typical fine-grained material. It was found that the dynamic recrystallization occurred only locally and thus provided only minor contribution to microstructural evolution. Hence, the preservation of the nearly-equiaxed grain morphology, inherent to the superplasticity phenomenon, cannot be attributed to the dynamic recrystallization.

中文翻译：

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Al-Mg-Li 合金超塑性变形过程中的微观结构演化：动态再结晶还是晶界滑动？

在这项工作中，应用电子背散射衍射 (EBSD) 的高级功能来评估动态再结晶在典型细晶材料的超塑性变形过程中所起的作用。结果发现，动态再结晶只发生在局部，因此对微观结构演变的贡献很小。因此，超塑性现象所固有的近等轴晶粒形态的保存不能归因于动态再结晶。