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Journal article

Recrystallization boundary migration in the 3D heterogeneous microstructure near a hardness indent

From

Manufacturing Engineering, Department of Mechanical Engineering, Technical University of Denmark1

Department of Mechanical Engineering, Technical University of Denmark2

Argonne National Laboratory3

Boundary migration during recrystallization in the heterogeneous microstructure near a hardness indent in lightly rolled pure Al was followed in 3D. The microstructure after multiple steps of ex-situ annealing was examined using synchrotron white-beam differential-aperture X-ray microscopy, supplemented by scanning electron microscopy.

Heterogeneous recrystallization boundary migration was observed and analyzed in terms of driving force and boundary characteristics. The results reveal very similar local stored energies and boundary misorientations for the migrating and stationary boundary segments, whereas the grain boundary normals differ significantly.

Effects of grain boundary mobility and deformation microstructure morphology on the migration are discussed.

Language: English
Year: 2021
Pages: 114187
ISSN: 18728456 and 13596462
Types: Journal article
DOI: 10.1016/j.scriptamat.2021.114187
ORCIDs: Hong, Chuanshi , Lindkvist, Adam , Zhang, Yubin and Juul Jensen, Dorte

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