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Performance evaluation of tungsten for ITER divertor toward mass production
https://repo.qst.go.jp/records/82031
https://repo.qst.go.jp/records/8203121192fca-a228-4a16-a5f4-49a0b1ddfbd3
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2021-03-01 | |||||
| タイトル | ||||||
| タイトル | Performance evaluation of tungsten for ITER divertor toward mass production | |||||
| 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 |
Makoto, Fukuda
× Makoto, Fukuda× Yoji, Seki× Koichiro, Ezato× Kenji, Yokoyama× Hiroshi, Nishi× Satoshi, Suzuki× Takeshi, Hirai× 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 | For the series production of the divertor outer vertical target (OVT) of the ITER, approximately 200,000 tungsten (W) monoblocks as plasma-facing material are planned to be manufactured. However, thus far, the variation in the properties of the W monoblocks has not been investigated. In this study, the chemical impurity level, material properties, and response to cyclic heat loading (i.e., durability and surface deformation) of W monoblocks manufactured using W plates supplied by A.L.M.T. Corp., Japan (ALMT) and Nidec Sankyo CMI Corp., Japan (NSCM) were investigated. On examining the manufactured lots (four from ALMT and two from NSCM), it was concluded that the variation in the material properties might have been caused by variations in the impurity level of the raw powder, contamination during manufacturing, and changes in the processing parameters. The results of the high heat flux test indicated that all the examined lots met the acceptance criteria. Hence, the variations observed in the chemical impurity level and material properties (e.g., density, Vickers hardness, and grain size) of the W plates supplied by ALMT and NSCM were acceptable. Therefore, W from the two suppliers will be employed in the full-scale plasma-facing unit prototype, which will be used for the final qualification of the material and OVT manufacturing technology. | |||||
| 書誌情報 |
Fusion Engineering and Design 巻 167, p. 112283, 発行日 2021-06 |
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| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 0920-3796 | |||||
| DOI | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.1016/j.fusengdes.2021.112283 | |||||
| 関連サイト | ||||||
| 識別子タイプ | URI | |||||
| 関連識別子 | https://www.sciencedirect.com/science/article/pii/S0920379621000594?via%3Dihub | |||||
