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The Effect of Predeformation on Creep Strength of 9% Cr Steel
http://hdl.handle.net/10228/00008157
http://hdl.handle.net/10228/0000815744248943-cd31-423d-97c6-2607a2860947
名前 / ファイル | ライセンス | アクション |
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scunit-2020_69.pdf (8.0 MB)
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Item type | 学術雑誌論文 = Journal Article(1) | |||||
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公開日 | 2021-04-08 | |||||
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 | ||||||
タイトル | The Effect of Predeformation on Creep Strength of 9% Cr Steel | |||||
言語 | ||||||
言語 | eng | |||||
著者 |
Král, Petr
× Král, Petr× Dvořák, Jiří× Blum, Wolfgang× Sklenička, Václav× 堀田, 善治× Takizawa, Yoichi× Tang, Yongpeng× Kunčická, Lenka× Kocich, Radim× Kvapilová, Marie× Svobodová, Marie |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Martensitic creep-resistant P92 steel was deformed by different methods of severe plastic deformation such as rotation swaging, high-pressure sliding, and high-pressure torsion at room temperature. These methods imposed significantly different equivalent plastic strains of about 1–30. It was found that rotation swaging led to formation of heterogeneous microstructures with elongated grains where low-angle grain boundaries predominated. Other methods led to formation of ultrafine-grained (UFG) microstructures with high frequency of high-angle grain boundaries. Constant load tensile creep tests at 873 K and initial stresses in the range of 50 to 300 MPa revealed that the specimens processed by rotation swaging exhibited one order of magnitude lower minimum creep rate compared to standard P92 steel. By contrast, UFG P92 steel is significantly softer than standard P92 steel, but differences in their strengths decrease with increasing stress. Microstructural results suggest that creep behavior of P92 steel processed by severe plastic deformation is influenced by the frequency of high-angle grain boundaries and grain coarsening during creep. | |||||
書誌情報 |
Materials 巻 13, 号 23, p. 5330-1-5330-17, 発行日 2020-11-25 |
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出版社 | ||||||
出版者 | MDPI | |||||
DOI | ||||||
関連タイプ | isIdenticalTo | |||||
識別子タイプ | DOI | |||||
関連識別子 | https://doi.org/10.3390/ma13235330 | |||||
日本十進分類法 | ||||||
主題Scheme | NDC | |||||
主題 | 564 | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 1996-1944 | |||||
著作権関連情報 | ||||||
権利情報 | Copyright (c) 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | creep-resistant 9% Cr steels | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | severe plastic deformation | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | microstructure | |||||
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 | |||||
連携ID | ||||||
8681 |