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Tensile properties and deformation behavior of ferrite and austenite duplex stainless steel at cryogenic temperatures
http://hdl.handle.net/10131/0002001196
http://hdl.handle.net/10131/00020011963d437947-fe25-46f1-8a95-0b83a0fb082d
| 名前 / ファイル | ライセンス | アクション |
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本文へのアクセスはこちら
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| Item type | 学術雑誌論文 / Journal Article(1) | |||||||||||||||
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| 公開日 | 2024-09-05 | |||||||||||||||
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| タイトル | Tensile properties and deformation behavior of ferrite and austenite duplex stainless steel at cryogenic temperatures | |||||||||||||||
| 言語 | en | |||||||||||||||
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| 言語 | eng | |||||||||||||||
| キーワード | ||||||||||||||||
| 言語 | en | |||||||||||||||
| 主題Scheme | Other | |||||||||||||||
| 主題 | Tensile property, Cryogenic temperature, Duplex stainless steel, Deformation induced martensitic transformation, Digital image correlation method | |||||||||||||||
| 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 | metadata only access | |||||||||||||||
| アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||||||||||||
| 著者 |
Koga, Norimitsu
× Koga, Norimitsu
× Nameki, Tatsuya
× Umezawa, Osamu
ORCID
0000-0003-0380-1885
× Valentin, Tschan
× Klaus-Peter, Weiss
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| 内容記述タイプ | Abstract | |||||||||||||||
| 内容記述 | The tensile properties and deformation and fracture behaviors of a commercial ferrite (body-centered cubic) and austenite (face-centered cubic) duplex stainless steel were investigated at cryogenic temperatures, and the mechanism underlying the improvement in the tensile properties of the steel at cryogenic temperatures was discussed. The strength of the steel increased continuously with lowering temperature, and the elongation hardly decreased with a decrease in temperature from 293 K to 77 K. At 40 K, the elongation of the steel decreased drastically, however, it increased significantly at 8 K. The serration of the steel was measured during its tensile test at 8 K. The volume fraction of the deformation induced martensite was high at 77 K and 8 K, while it was low at 40 K. The strain accumulated in the ferrite and austenite phases during the deformation process remained almost constant at all the test temperatures. The ductile fracture occurred 293 K, 200 K, 77 K, and 8 K, while brittle fracture occurred at 40 K. The low volume fraction of the deformation induced martensite and the occurrence of brittle fracture can explain the low elongation of the steel at 40 K. At 8 K, the occurrence of serration may increase the temperature in the deformation region, which led to an increase in the volume fraction of the deformation induced martensite, as well as the suppression of brittle fracture, resulting in high elongation. The occurrence of deformation induced martensitic transformation, simultaneous deformation of ferrite and austenite, ductile fracture contribute to improvement of tensile property of ferrite and austenite duplex stainless steel at cryogenic temperatures. | |||||||||||||||
| 言語 | en | |||||||||||||||
| 書誌情報 |
en : Materials Science and Engineering: A 巻 801, ページ数 8, 発行日 2021-01-13 |
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| 収録物識別子タイプ | PISSN | |||||||||||||||
| 収録物識別子 | 09215093 | |||||||||||||||
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| 収録物識別子タイプ | NCID | |||||||||||||||
| 収録物識別子 | AA10720420 | |||||||||||||||
| DOI | ||||||||||||||||
| 識別子タイプ | DOI | |||||||||||||||
| 関連識別子 | https://doi.org/10.1016/j.msea.2020.140442 | |||||||||||||||
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| 出版タイプ | VoR | |||||||||||||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||||||||||||
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| 出版者 | Elsevier | |||||||||||||||
| 言語 | en | |||||||||||||||
