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Investigation of strain redistribution mechanism in α titanium by image-based crystal plasticity analysis
https://kitami-it.repo.nii.ac.jp/records/8732
https://kitami-it.repo.nii.ac.jp/records/87323b18c035-36d9-4aba-9c9c-36dffa92534b
名前 / ファイル | ライセンス | アクション |
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05-2019-EPJB (2.3 MB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2020-10-01 | |||||
タイトル | ||||||
タイトル | Investigation of strain redistribution mechanism in α titanium by image-based crystal plasticity analysis | |||||
言語 | en | |||||
言語 | ||||||
言語 | eng | |||||
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 | |||||
アクセス権 | ||||||
アクセス権 | open access | |||||
アクセス権URI | http://purl.org/coar/access_right/c_abf2 | |||||
著者 |
Kawano, Yoshiki
× Kawano, Yoshiki× Ohashi, Tetsuya× Mayama, Tsuyoshi× Tanaka, Masaki× Okuyama, Yelm× Sato, Michihiro |
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著者別名 | ||||||
識別子Scheme | WEKO | |||||
識別子 | 90132 | |||||
識別子Scheme | CiNii ID | |||||
識別子URI | http://ci.nii.ac.jp/nrid/9000006330124 | |||||
識別子 | 9000006330124 | |||||
識別子Scheme | KAKEN - 研究者検索 | |||||
識別子URI | https://nrid.nii.ac.jp/ja/nrid/1000020634413/ | |||||
識別子 | 20634413 | |||||
姓名 | 河野, 義樹 | |||||
言語 | ja | |||||
著者別名 | ||||||
識別子Scheme | WEKO | |||||
識別子 | 90172 | |||||
識別子Scheme | CiNii ID | |||||
識別子URI | http://ci.nii.ac.jp/nrid/1000080312445 | |||||
識別子 | 1000080312445 | |||||
識別子Scheme | KAKEN - 研究者検索 | |||||
識別子URI | https://nrid.nii.ac.jp/ja/nrid/1000080312445/ | |||||
識別子 | 80312445 | |||||
姓名 | 大橋, 鉄也 | |||||
言語 | ja | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Mechanisms of strain localization and localized activation of slip systems in α titanium were investigated using a crystal plasticity finite element (CPFE) method. A microscopic image of polycrystalline α titanium was obtained by electron back scatter diffraction (EBSD), and the data was converted from the microscopic image into the geometric model for the CPFE analysis. The uniaxial tensile deformation of the model was numerically reproduced by the CPFE method employing a dislocation density based constitutive equation. The results showed that the strain distribution corresponds well with that obtained by the experiment when the ratio of critical resolved shear stress (CRSS) employed in the numerical simulation is basal:prismatic ⟨a⟩:1st-pyramidal ⟨a⟩:1st-pyramidal ⟨c + a⟩:2nd-pyramidal ⟨c + a⟩ = 1.0:1.0:1.3:2.0:2.0. Next, numerical simulations were performed by changing the ratio of CRSS among the slip systems but keeping all other conditions the same as those of the above uniaxial tensile analysis. The results showed that strain redistribution typically occurs between hard and soft regions with high and low CRSSs for the primary slip systems; this redistribution resulted in a localized higher strain and activation of slip systems. However, localized activation of slip systems was observed even in slip systems with higher CRSS; the mechanism could be explained by the strain redistribution in the tensile direction. | |||||
言語 | en | |||||
書誌情報 |
en : The European Physical Journal B 巻 92, 号 9, 発行日 2019-09 |
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ISSN | ||||||
収録物識別子タイプ | PISSN | |||||
収録物識別子 | 1434-6028 | |||||
DOI | ||||||
識別子タイプ | DOI | |||||
関連識別子 | https://doi.org/10.1140/epjb/e2019-100238-3 | |||||
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値 | author | |||||
出版タイプ | ||||||
出版タイプ | AM | |||||
出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa |