書誌事項
- タイトル別名
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- Mechanism of Plastic Deformation in a Magnesium Nanotwinned Structure by Molecular Dynamics Simulations
- ブンシ ドウリキガクホウ ニ ヨル マグネシウムナノツイン コウゾウ ノ ソセイ ヘンケイ キコウ カイセキ
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<p>In this study, we perform molecular dynamics simulations to investigate plastic deformation modes of a magnesium (Mg) nanotwinned structure. Periodic units including (1011) twin boundaries (TBs) are analyzed using an embedded atom method potential. Equal spaces between the TBs are assumed at the initial state and the space is parametrized in the range between about 5 nm and 30 nm. It is found that plastic deformation is triggered by the slip along a (1011) twinning plane near a TB, and that this event induces two different deformation modes depending on the space, i.e., the migration of the TBs and the evolution of double twinning, which leads to void nucleation and polycrystallization. The plastic deformation provided by the two different modes is quantitatively verified from geometric analysis. As the space decreases, the migration of the TBs is superior to the evolution of double twinning.</p>
収録刊行物
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- 材料
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材料 67 (2), 215-221, 2018
公益社団法人 日本材料学会
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詳細情報 詳細情報について
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- CRID
- 1390001205445549952
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- NII論文ID
- 130006386397
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- NII書誌ID
- AN00096175
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- ISSN
- 18807488
- 05145163
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- NDL書誌ID
- 028854056
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- NDL
- Crossref
- CiNii Articles
- KAKEN
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- 抄録ライセンスフラグ
- 使用不可