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Phase-field simulation of rafting kinetics in a nickel-based single crystal superalloy
http://hdl.handle.net/2237/26782
http://hdl.handle.net/2237/26782cfccced0-bd8e-4537-a2ba-94cf11ff3ba5
名前 / ファイル | ライセンス | アクション |
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INTERMETALLICS_Revision_Final.pdf ファイル公開:2019/06/01 (4.2 MB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2017-07-07 | |||||
タイトル | ||||||
タイトル | Phase-field simulation of rafting kinetics in a nickel-based single crystal superalloy | |||||
言語 | en | |||||
著者 |
Tsukada, Yuhki
× Tsukada, Yuhki× Koyama, Toshiyuki× Kubota, Fuminori× Murata, Yoshinori× Kondo, Yoshihiro |
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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 | |||||
権利 | ||||||
言語 | en | |||||
権利情報 | © 2017. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/ | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Creep | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | diffusion | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | inhomogeneous deformation | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Microstructure | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Phase field modeling | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Aero-engine components | |||||
抄録 | ||||||
内容記述 | Directional coarsening (rafting) of the γ′ precipitate phase during creep in a nickel-based single crystal superalloy is simulated using the phase-field method. Both the morphological change of the γ′ phase and the microstructure-dependent heterogeneous creep of the γ matrix phase are modeled in the simulation. In three-dimensional simulations considering a single γ′ particle at 1273 K under tensile stresses of 130 MPa and 100 MPa along the [001] crystallographic direction, the γ′ phase coarsens toward the direction perpendicular to the applied stress axis. The simulated macroscopic creep rate–time curve in the initial stage of creep is consistent with the experimental data. The time to rafting increases with decreasing magnitude of the applied external stress. Furthermore, the external stress is removed at an arbitrary strain in the simulation at 1273 K, and the occurrence of rafting during the subsequent heat treatment without external stress is confirmed. The simulation results show that the threshold value of macroscopic strain for inducing rafting (ɛth) is ɛth=0.12%–0.16% in the stress range of 100–160 MPa. Moreover, rafting can be accelerated by removing the external stress of 100–160 MPa when the macroscopic strain exceeds ɛth. | |||||
言語 | en | |||||
内容記述タイプ | Abstract | |||||
出版者 | ||||||
言語 | en | |||||
出版者 | Elsevier | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプresource | http://purl.org/coar/resource_type/c_6501 | |||||
タイプ | journal article | |||||
出版タイプ | ||||||
出版タイプ | AM | |||||
出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa | |||||
DOI | ||||||
関連タイプ | isVersionOf | |||||
識別子タイプ | DOI | |||||
関連識別子 | https://doi.org/10.1016/j.intermet.2017.02.017 | |||||
ISSN | ||||||
収録物識別子タイプ | PISSN | |||||
収録物識別子 | 0966-9795 | |||||
書誌情報 |
en : Intermetallics 巻 85, p. 187-196, 発行日 2017-06 |
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著者版フラグ | ||||||
値 | author | |||||
URI | ||||||
識別子 | https://doi.org/10.1016/j.intermet.2017.02.017 | |||||
識別子タイプ | DOI | |||||
URI | ||||||
識別子 | http://hdl.handle.net/2237/26782 | |||||
識別子タイプ | HDL |