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ナノ結晶分散アモルファス金属の力学特性 : 分子動力学法による結晶体積分率と粒子径の影響の検討
http://hdl.handle.net/10228/316
http://hdl.handle.net/10228/31653211817-1cd8-411f-9260-d55b8effb5e9
名前 / ファイル | ライセンス | アクション |
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0387-5008_72-713-p32.pdf (664.0 kB)
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Item type | 学術雑誌論文 = Journal Article(1) | |||||
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公開日 | 2007-11-15 | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
タイトル | ||||||
言語 | ja | |||||
タイトル | ナノ結晶分散アモルファス金属の力学特性 : 分子動力学法による結晶体積分率と粒子径の影響の検討 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Mechanical Property of Amorphous Metal with Dispersed Nanocrystalline Particle: Molecular Dynamics Study on Crystal Volume Fraction and Size Effects | |||||
言語 | ||||||
言語 | jpn | |||||
著者 |
松本, 龍介
× 松本, 龍介× 中垣, 通彦 |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | In this paper, large scale molecular dynamics simulations of tensile deformation of amorphous metals with a nanocrystalline particle were performed in order to clarify the effect of particle size and crystal volume fraction on the deformation property and the strength. It became clear that the size effects of particle are very small, and the influence of the crystal volume fraction is large. The elastic modulus and the flow stress become large as the crystal volume fraction increases. After yielding of the amorphous phase, the stress of the crystal phase still increases. Thus, the flow stress of the composite increases after yielding. It prevents plastic localization and improves the ductility. When the crystal volume fraction is small, the stress distribution is homogeneous in the particle including near the amorphous-crystal interface. Therefore, chances of the originating deformation are small, the inside-particle plastic deformation hardly occurs. When the crystal volume fraction is high, the particles undergo plastic deformation even with small global deformations. After yielding of the crystal particle, the flow stress decreases, because defects are introduced into the crystal. It is expected that the ideal crystal volume fraction which improve the ductility may exist. Lennard-Jones potential which is modified to enforce the continuity at the cut off distance was used. The potential parametes were defined based on Inoue's three basic principles. | |||||
言語 | en | |||||
書誌情報 |
ja : 日本機械学會論文集. A編 en : Transactions of the Japan Society of Mechanical Engineers. A 巻 72, 号 713, p. 32-38, 発行日 2006-01-25 |
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出版社 | ||||||
言語 | ja | |||||
出版者 | 日本機械学会 | |||||
DOI | ||||||
関連タイプ | isIdenticalTo | |||||
識別子タイプ | DOI | |||||
関連識別子 | https://doi.org/10.1299/kikaia.72.32 | |||||
CRID | ||||||
関連タイプ | isIdenticalTo | |||||
識別子タイプ | URI | |||||
関連識別子 | https://cir.nii.ac.jp/crid/1390001204476993408 | |||||
NCID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AN0018742X | |||||
ISSN | ||||||
収録物識別子タイプ | EISSN | |||||
収録物識別子 | 1884-8338 | |||||
ISSN | ||||||
収録物識別子タイプ | PISSN | |||||
収録物識別子 | 0387-5008 | |||||
著作権関連情報 | ||||||
権利情報 | 社団法人日本機械学会. 本文データは学協会の許諾に基づきCiNiiから複製したものである | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Molecular Dynamics | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Computational Mechanics | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Material Design | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Size Effect | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Plasticity | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | AmorphousMetal | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Deformation Mechanism | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Nanocrystalline Metal | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Material Modeling | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Nano-Composite | |||||
出版タイプ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
査読の有無 | ||||||
値 | yes |