Microstructural evolution during superplastic deformation of Al-Mg-Li alloy : dynamic recrystallization or grain-boundary sliding?

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Myshlyaev, M. and Korznikova, G. and Konkova, T. and Korznikova, E. and Aletdinov, A. and Khalikova, G. and Raab, G. and Mironov, S. (2023) Microstructural evolution during superplastic deformation of Al-Mg-Li alloy : dynamic recrystallization or grain-boundary sliding? Journal of Alloys and Compounds, 936. 168302. ISSN 0925-8388 (https://doi.org/10.1016/j.jallcom.2022.168302)

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Abstract

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.

ORCID iDs

Myshlyaev, M., Korznikova, G., Konkova, T. ORCID logoORCID: https://orcid.org/0000-0001-7495-7495, Korznikova, E., Aletdinov, A., Khalikova, G., Raab, G. and Mironov, S.;
CORE (COnnecting REpositories)