TY - JOUR
T1 - Dislocation structures formed inside dislocation channels of rapid-cooled and tensile-deformed aluminum single crystals
AU - Fukuoka, Ryoma
AU - Tokuno, Kazushige
AU - Mitsuhara, Masatoshi
AU - Yamakoshi, Kohei
AU - Tsuchida, Shinnosuke
AU - Miyamoto, Junji
AU - Hagino, Masahiro
N1 - Publisher Copyright:
© 2021 The Japan Institute of Metals and Materials
PY - 2021/2/1
Y1 - 2021/2/1
N2 - Dislocation structures inside the cleared dislocation channels in rapid-cooled and tensile-deformed aluminum single crystals were investigated by using transmission electron microscope (TEM). The present study especially focused on the dislocation structures at their early formation stage. In their very beginning stage, arrays of prismatic dislocation loops of the primary slip system were essentially formed elongating along [1- 2 1] direction and each prismatic loop stacked to [1- 0 1]. With the progress of plastic deformation, the number of the prismatic loops composing the array increased and produced tangled structures with dislocations of the primary coplanar slip system. The tangled structures may act as strong obstacles against the following primary dislocations and become a triggering factor for the creation of the cell structure.
AB - Dislocation structures inside the cleared dislocation channels in rapid-cooled and tensile-deformed aluminum single crystals were investigated by using transmission electron microscope (TEM). The present study especially focused on the dislocation structures at their early formation stage. In their very beginning stage, arrays of prismatic dislocation loops of the primary slip system were essentially formed elongating along [1- 2 1] direction and each prismatic loop stacked to [1- 0 1]. With the progress of plastic deformation, the number of the prismatic loops composing the array increased and produced tangled structures with dislocations of the primary coplanar slip system. The tangled structures may act as strong obstacles against the following primary dislocations and become a triggering factor for the creation of the cell structure.
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U2 - 10.2320/matertrans.MT-M2020255
DO - 10.2320/matertrans.MT-M2020255
M3 - Article
AN - SCOPUS:85100000224
VL - 62
SP - 221
EP - 228
JO - Materials Transactions
JF - Materials Transactions
SN - 0916-1821
IS - 2
ER -