Journal
MATERIALS LETTERS
Volume 265, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.matlet.2020.127455
Keywords
Metals and alloys; Dislocation density; Recrystallization; Microstructure; Al-3(Sc, Zr) particles
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The recrystallization behaviour and Al-3(Sc, Zr) particles were studied by annealing the samples with different deformation ways. Two samples were studied, cold rolling (CR) and equal channel angular pressing (ECAP). The ECAP sample has higher dislocation density, leading to the results that the ECAP sample is recrystallized thoroughly whereas the CR sample is only recrystallized partly. Additionally, the morphology of Al-3(Sc, Zr) particles are changed after the recrystallization. Almost all the Al-3(Sc, Zr) particles in ECAP sample are incoherent and large, losing pinning effect, but those in the CR sample just grow up a bit and pin the grain boundaries (GBs) strongly. (C) 2020 Elsevier B.V. All rights reserved.
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