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Evaluation of mass production results of cryogenic structural stainless steels for ITER toroidal field coils
https://repo.qst.go.jp/records/86112
https://repo.qst.go.jp/records/86112b292f2ee-65b6-450d-ad7a-d3face0e09bb
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2022-05-11 | |||||
| タイトル | ||||||
| タイトル | Evaluation of mass production results of cryogenic structural stainless steels for ITER toroidal field coils | |||||
| 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 | metadata only access | |||||
| アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
| 著者 |
Masahide, Iguchi
× Masahide, Iguchi× Takeru, Sakurai× Tetsuo, Hisashige× Masataka, Nakahira× Masahide, Iguchi× Takeru, Sakurai× Tetsuo, Hisashige× Masataka, Nakahira |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | The National Institutes for Quantum Science and Technology (QST) has been developing new cryogenic structural materials, such as JJ1 stainless, and nitrogen-enhanced 316L stainless, known as 316LN, since the 1980s for increased tensile strength to comply with the ITER requirements. QST has also developed prediction curves for yield stress and tensile strength at temperatures from room temperature to 4 K based on the actual properties of these materials at room temperature to reduce the number of tensile tests conducted at 4 K, which are costly. After material trials and qualifications, the manufacture of material candidates began in earnest from 2012. In total, over 2400 materials (over 5000 tonne) were manufactured by six fabricators until manufacturing was completed successfully in 2020. The material properties of each material candidate were evaluated by QST and added into a database registry. Sampling tests, e.g., tensile tests were conducted at 4 K and 77 K. The correlations between the mechanical and material properties were evaluated to optimize material specifications of future superconducting magnets. The accuracy of QST's prediction curves was also confirmed. This paper summarizes the evaluation of the material properties and the prediction accuracy of mass-produced materials for the ITER toroidal field coil cases. | |||||
| 書誌情報 |
IEEE Transaction on Applied Superconductivity 発行日 2022-03 |
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| 出版者 | ||||||
| 出版者 | IEEE | |||||
| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 1051-8223 | |||||
| DOI | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.1109/TASC.2022.3160383 | |||||
| 関連サイト | ||||||
| 識別子タイプ | URI | |||||
| 関連識別子 | https://ieeexplore.ieee.org/document/9737384 | |||||
