TY - JOUR
T1 - EBSD study of superplasticity
T2 - new insight into a well-known phenomenon
AU - Myshlyaev, Mikhail
AU - Mironov, Sergey
AU - Korznikova, Galia
AU - Konkova, Tatyana
AU - Korznikova, Elena
AU - Aletdinov, Ainur
AU - Khalikova, Gulnara
AU - Raab, George
AU - Semiatin, Sheldon Lee
PY - 2022/3/25
Y1 - 2022/3/25
N2 - Electron backscatter diffraction (EBSD) was applied to investigate the superplastic behavior of a fine-grain Al-Mg-Li alloy. It was found that microstructural changes were noticeably influenced by the occurrence of continuous dynamic recrystallization. This mechanism involved a transverse subdivision of pre-elongated grains which eventually transformed into chains of nearly-equiaxed grains. A body of experimental observations, including extensive strain hardening, marked grain elongation, the formation of pronounced substructure in interior regions of grains, and the development of crystallographic texture, provided strong evidence of large amounts of intragranular slip operating during superplastic flow.
AB - Electron backscatter diffraction (EBSD) was applied to investigate the superplastic behavior of a fine-grain Al-Mg-Li alloy. It was found that microstructural changes were noticeably influenced by the occurrence of continuous dynamic recrystallization. This mechanism involved a transverse subdivision of pre-elongated grains which eventually transformed into chains of nearly-equiaxed grains. A body of experimental observations, including extensive strain hardening, marked grain elongation, the formation of pronounced substructure in interior regions of grains, and the development of crystallographic texture, provided strong evidence of large amounts of intragranular slip operating during superplastic flow.
KW - superplasticity
KW - metals and alloys
KW - electron backscatter diffraction (EBSD)
KW - microstructure
U2 - 10.1016/j.jallcom.2021.162949
DO - 10.1016/j.jallcom.2021.162949
M3 - Article
SN - 0925-8388
VL - 898
JO - Journal of Alloys and Compounds
JF - Journal of Alloys and Compounds
M1 - 162949
ER -