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

Chuanshi Hong; Yubin Zhang; Adam Lindkvist; Wenjun Liu; Jon Tischler; Ruqing Xu; Dorte Juul Jensen

doi:10.1016/j.scriptamat.2021.114187

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

Chuanshi Hong^*, Yubin Zhang, Adam Lindkvist, Wenjun Liu, Jon Tischler, Ruqing Xu, Dorte Juul Jensen^*

^*Corresponding author for this work

Argonne National Laboratory

Research output: Contribution to journal › Journal article › Research › peer-review

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Abstract

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.

Original language	English
Article number	114187
Journal	Scripta Materialia
Volume	205
Number of pages	5
ISSN	1359-6462
DOIs	https://doi.org/10.1016/j.scriptamat.2021.114187
Publication status	Published - 2021

Keywords

Recrystallization
Grain boundary migration
Synchrotron radiation
3D reconstruction
Heterostructures

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title = "Recrystallization boundary migration in the 3D heterogeneous microstructure near a hardness indent",

abstract = "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.",

keywords = "Recrystallization, Grain boundary migration, Synchrotron radiation, 3D reconstruction, Heterostructures",

author = "Chuanshi Hong and Yubin Zhang and Adam Lindkvist and Wenjun Liu and Jon Tischler and Ruqing Xu and {Juul Jensen}, Dorte",

year = "2021",

doi = "10.1016/j.scriptamat.2021.114187",

language = "English",

volume = "205",

journal = "Scripta Materialia",

issn = "1359-6462",

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TY - JOUR

T1 - Recrystallization boundary migration in the 3D heterogeneous microstructure near a hardness indent

AU - Hong, Chuanshi

AU - Zhang, Yubin

AU - Lindkvist, Adam

AU - Liu, Wenjun

AU - Tischler, Jon

AU - Xu, Ruqing

AU - Juul Jensen, Dorte

PY - 2021

Y1 - 2021

N2 - 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.

AB - 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.

KW - Recrystallization

KW - Grain boundary migration

KW - Synchrotron radiation

KW - 3D reconstruction

KW - Heterostructures

U2 - 10.1016/j.scriptamat.2021.114187

DO - 10.1016/j.scriptamat.2021.114187

M3 - Journal article

SN - 1359-6462

VL - 205

JO - Scripta Materialia

JF - Scripta Materialia

M1 - 114187

ER -

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

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