Annealing-Induced Grain Rotation In Ultrafine-Grained Aluminum Alloy

Results of in situ transmission electron microscopic studies of annealing-induced evolution of grain boundary misorientations in ultrafine-grained aluminum alloy Al-4%Cu-0.5%Zr (wt.%) processed by high pressure torsion are presented. An experimental procedure based on the single reflection technique...

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Main Authors: Danilenko V. N., Bachurin D. V., Nazarov A. A.
Format: Article
Language:English
Published: De Gruyter 2018-04-01
Series:Reviews on Advanced Materials Science
Online Access:https://doi.org/10.1515/rams-2018-0029
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author Danilenko V. N.
Bachurin D. V.
Nazarov A. A.
author_facet Danilenko V. N.
Bachurin D. V.
Nazarov A. A.
author_sort Danilenko V. N.
collection DOAJ
description Results of in situ transmission electron microscopic studies of annealing-induced evolution of grain boundary misorientations in ultrafine-grained aluminum alloy Al-4%Cu-0.5%Zr (wt.%) processed by high pressure torsion are presented. An experimental procedure based on the single reflection technique was applied for the measurements of orientations of individual grains before and after annealing that allowed for determining misorientations between them. The measurements revealed that relaxation processes occurring in non-equilibrium grain boundaries during short-time annealing are accompanied by a change of grain boundary misorientations, grain rotation, grain migration as well as grain growth. Obtained results were compared with theoretical studies considering the kinetics of grain rotation in discrete-dislocation as well as continuum approaches.
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spelling doaj.art-79369aa20e894e00af78bd25e5d60dbf2022-12-21T22:38:06ZengDe GruyterReviews on Advanced Materials Science1605-81272018-04-01551697710.1515/rams-2018-0029Annealing-Induced Grain Rotation In Ultrafine-Grained Aluminum AlloyDanilenko V. N.0Bachurin D. V.1Nazarov A. A.2Institute for Metals Superplasticity Problems of the Russian Academy of Sciences, 39Khalturinstr.,Ufa 450001, RussiaInstitute for Metals Superplasticity Problems of the Russian Academy of Sciences, 39Khalturinstr.,Ufa 450001, RussiaInstitute for Applied Materials Physics, Karlsruhe Institute of Technology, 76344,Eggenstein-Leopoldshafen, Hermann-von-Helmholtz-Platz 1, GermanyResults of in situ transmission electron microscopic studies of annealing-induced evolution of grain boundary misorientations in ultrafine-grained aluminum alloy Al-4%Cu-0.5%Zr (wt.%) processed by high pressure torsion are presented. An experimental procedure based on the single reflection technique was applied for the measurements of orientations of individual grains before and after annealing that allowed for determining misorientations between them. The measurements revealed that relaxation processes occurring in non-equilibrium grain boundaries during short-time annealing are accompanied by a change of grain boundary misorientations, grain rotation, grain migration as well as grain growth. Obtained results were compared with theoretical studies considering the kinetics of grain rotation in discrete-dislocation as well as continuum approaches.https://doi.org/10.1515/rams-2018-0029
spellingShingle Danilenko V. N.
Bachurin D. V.
Nazarov A. A.
Annealing-Induced Grain Rotation In Ultrafine-Grained Aluminum Alloy
Reviews on Advanced Materials Science
title Annealing-Induced Grain Rotation In Ultrafine-Grained Aluminum Alloy
title_full Annealing-Induced Grain Rotation In Ultrafine-Grained Aluminum Alloy
title_fullStr Annealing-Induced Grain Rotation In Ultrafine-Grained Aluminum Alloy
title_full_unstemmed Annealing-Induced Grain Rotation In Ultrafine-Grained Aluminum Alloy
title_short Annealing-Induced Grain Rotation In Ultrafine-Grained Aluminum Alloy
title_sort annealing induced grain rotation in ultrafine grained aluminum alloy
url https://doi.org/10.1515/rams-2018-0029
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