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

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)