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oai:u-ryukyu.repo.nii.ac.jp:02000834
2023-08-03T05:34:49Z
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適合型三重結晶の引張りに伴う結晶粒の多体相互作用と回位型変位場の形成
Multi-Body-Interaction of Crystal Grains in Compatible-type Tricrystals under Tensile Loading and Formation of Disclination-type Displacement Field
近藤, 了嗣
大橋, 鉄也
Kondou, Ryouji
Ohashi, Tetsuya
open access
Copyright (c) 2006 日本機械学会
Compatible type Tri-crystal
Crystal Plasticity Analysis
Geometrically Necessary Dislocation
Multi Body Interaction
Disclination
Slip deformation in compatible-type tri-crystal models subjected to tensile load is investigated by using a continuum-mechanics-based crystal plasticity analysis technique. Accumulation of geometrically necessary dislocations (GDNs) and statistically stored dislocations (SSDs) are studied in detail. Mutual constraint of grains through the grain boundary plane does not occur in the compatible type tri-crystals, but results of the analysis show non-uniform deformaion and high density of GNDs accumulated in the form of band in each grain. Mechanism of non-uniform deformation and accumulation of GNDs in the form of band in the compatible-type tri-crystals is discussed from the viewpoint of multi-body interaction between constituent crystal grains. The multi-body interaction is shown to be caused by shape change of grains after slip deformation and contribute for the formation of disclination type displacement field at the grain boundary triple junction.
論文
日本機械学会
2006-06-25
jpn
journal article
VoR
http://hdl.handle.net/20.500.12000/122
http://hdl.handle.net/20.500.12000/122
https://u-ryukyu.repo.nii.ac.jp/records/2000834
03875008
AN0018742X
日本機械学会論文集. A編
Transactions of the Japan Society of Mechanical Engineers. A
72
718
127
134
https://u-ryukyu.repo.nii.ac.jp/record/2000834/files/kondou_r01.pdf