Journal
SCRIPTA MATERIALIA
Volume 173, Issue -, Pages 37-40Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.scriptamat.2019.07.047
Keywords
Yttrium aluminum garnet (YAG); Cold-working; Recrystallization
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Cold deformation was realized in the transparent polycrystalline yttrium aluminum garnet (YAG) using Vickers indentation. Following this, annealing at 1500 degrees C for 2 h led to a grain refinement from 4.8 to 0.49 mu m in the plastically deformed region, indicating the occurrence of recrystallization. It is supported by transmission electron microscope characterization that plastic deformation-induced dislocations are annihilated and rearranged, resulting in the formation of new grain boundaries during annealing. (C) 2019 Acta Materialia Inc Published by Elsevier Ltd. All rights reserved.
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