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Title :Cu-9 at.% Al合金対称双結晶の引張りにおける微視的非適合性と転位密度不均質性の関係
Title alternative :Relationship between Micro-Incompatibility and Heterogeneity of Dislocation Density Distribution in Cu-9 at.% Al Symmetric Type Bicrystal Models under Tensile Loading
Authors :近藤, 了嗣
大橋, 鉄也
三浦, 精
Authors alternative :Kondou, Ryouji
Ohashi, Tetsuya
Miura, Sei
Issue Date :25-Apr-2006
Abstract :Slip deformation in Cu-9 at.% Al symmetric type bicrystal models subjected to tensile loading is investigated by a finite element crystal plasticity analysis code. Accumulation of geometrically necessary dislocations (GNDs) and statistically stored dislocations (SSDs) are studied in detail. Results of the analysis show asymmetric non-uniform deformation and accumulation of GNDs on the primary and secondary slip systems with activity of secondary slip system near the grain boundary. Mechanism of asymmetric non-uniform deformation with GNDs accumulated near the grain boundary in the Cu-9 at.% Al symmetric-type bicrystal models is discussed from the viewpoint effects of elastic anisotropy of Cu-9 at.% Al and heterogeneity of initial statically stored dislocations density.
Type Local :雑誌掲載論文
ISSN :03875008
Publisher :日本機械学会
URI :http://hdl.handle.net/20.500.12000/121
Citation :日本機械学会論文集. A編 = Transactions of the Japan Society of Mechanical Engineers. A Vol.72 no.716 p.222 -229
Appears in Collections:Peer-reviewed Journal Articles (Faculty of Engineering)

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