EBSD study of superplasticity: New insight into a well-known phenomenon
نویسندگان
چکیده
Electron backscatter diffraction (EBSD) was applied to investigate the superplastic behavior of a fine-grain Al-Mg-Li alloy. It found that microstructural changes were noticeably influenced by occurrence continuous dynamic recrystallization. This mechanism involved transverse subdivision pre-elongated grains which eventually transformed into chains nearly-equiaxed grains. A body experimental observations, including extensive strain hardening, marked grain elongation, formation pronounced substructure in interior regions grains, and development crystallographic texture, provided strong evidence large amounts intragranular slip operating during flow.
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ژورنال
عنوان ژورنال: Journal of Alloys and Compounds
سال: 2022
ISSN: ['0925-8388', '1873-4669']
DOI: https://doi.org/10.1016/j.jallcom.2021.162949