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Effect of cyclic heat loading on pure tungsten for the ITER divertor
https://repo.qst.go.jp/records/81489
https://repo.qst.go.jp/records/8148912aa79a5-46dc-443e-9c4d-f6ec482a8d32
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2020-12-29 | |||||
| タイトル | ||||||
| タイトル | Effect of cyclic heat loading on pure tungsten for the ITER divertor | |||||
| 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 |
Fukuda, Makoto
× Fukuda, Makoto× Seki, Yoji× Ezato, Koichiro× Yokoyama, Kenji× Nishi, Hiroshi× Satoshi, Suzuki× Makoto, Fukuda× Yohji, Seki× Koichiro, Ezato× Kenji, Yokoyama× Hiroshi, Nishi× Satoshi, Suzuki |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | The plasma facing unit (PFU) of ITER divertor is repeatedly exposed to high heat flux, and a reliable heat removal capability is crucial for its adequate performance. The cyclic high heat flux test (HHFT) that has been conducted to evaluate the reliability of PFU reveals that the surface modification and macro-crack formation in W monoblock, which is the plasma facing material, may hinder the operation of fusion reactors. Therefore, optimization of both manufacturing technology and material development is necessary for reliable operation. In this study, we investigate the dependence of material properties on the surface modification and macro-crack formation in W monoblocks. W monoblocks manufactured by two different suppliers were examined, and the results of cyclic HHFT revealed that the heat removal capability was not degraded in all the examined W monoblocks. Further, it was observed that the W monoblock exhibiting characteristic grain structure and tensile property suffered less surface modification without macro-crack formation due to cyclic heat loading. | |||||
| 書誌情報 |
Journal of Nuclear Materials 巻 542, p. 152509, 発行日 2020-12 |
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| 出版者 | ||||||
| 出版者 | Elsevier | |||||
| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 0022-3115 | |||||
| DOI | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.1016/j.jnucmat.2020.152509 | |||||
| 関連サイト | ||||||
| 識別子タイプ | URI | |||||
| 関連識別子 | https://www.sciencedirect.com/science/article/pii/S002231152031117X | |||||
