In-Situ TEM Observation of Dislocation Interaction with Cavity in Ion-Irradiated Pure Vanadium during Tensile Test
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- Tougou Kouichi
- Research Institute of Nuclear Engineering, University of Fukui
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- Nogiwa Kimihiro
- Research Institute of Nuclear Engineering, University of Fukui
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- Shikata Akihito
- Research Institute of Nuclear Engineering, University of Fukui
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- Fukumoto Ken-ichi
- Research Institute of Nuclear Engineering, University of Fukui
書誌事項
- タイトル別名
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- <i>In</i>-<i>Situ</i> TEM Observation of Dislocation Interaction with Cavity in Ion-Irradiated Pure Vanadium during Tensile Test
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To investigate the hardening mechanism due to cavity formation in vanadium, in-situ transmission electron microscopy (TEM) observation was performed for the helium ion-irradiated pure vanadium during tensile test. The obstacle barrier strength α was calculated from the bow-out dislocation based on line tension model and the obstacle barrier strength of cavity in pure vanadium was about 0.5 to 0.7 and slightly increased with increasing the cavity size. Generations of cross-slip and double cross-slip occurred with jog generating after the interaction between dislocations and cavities. The fraction of cross-slip and double cross-slip at dislocation pinning were increased with the increasing cavity size and it is suggested that the cross-slip of dislocation can be formed at cavity due to local climb motion of dislocation on the cavity surface.
収録刊行物
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- MATERIALS TRANSACTIONS
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MATERIALS TRANSACTIONS 54 (7), 1095-1101, 2013
公益社団法人 日本金属学会
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詳細情報 詳細情報について
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- CRID
- 1390282679226368512
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- NII論文ID
- 10031183651
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- NII書誌ID
- AA1151294X
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- COI
- 1:CAS:528:DC%2BC3sXhsVGjtrnP
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- ISSN
- 13475320
- 13459678
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- NDL書誌ID
- 024647479
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
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- 使用不可