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A study of plasma facing tungsten components with electrical discharge machined surface exposed to cyclic thermal loads
https://repo.qst.go.jp/records/48206
https://repo.qst.go.jp/records/4820686bd04f2-c352-46a7-a815-58b8d4144376
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2017-07-25 | |||||
| タイトル | ||||||
| タイトル | A study of plasma facing tungsten components with electrical discharge machined surface exposed to cyclic thermal loads | |||||
| 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 |
関, 洋治
× 関, 洋治× 江里, 幸一郎× 鈴木, 哲× 横山, 堅二× 山田, 弘一× 平山, 智之× 関 洋治× 江里 幸一郎× 鈴木 哲× 横山 堅二× 山田 弘一× 平山 智之 |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | Through R&D for a plasma facing units (PFUs) in an outer vertical target of an ITER full-tungsten (W) divertor, Japan Atomic Energy Agency succeeded in demonstrating the durability of the W divertor shaped by an electrical discharge machining (EDM). To prevent melting of W amours in the PFUs, an adequate technology to meet requirements of a geometrical shape and a tolerance is one of the most important key issues in a manufacturing process. From the necessity, the EDM has been evaluated to control the final shape of the W amour. Though the EDM was known to be advantages such as an easy workability, a potential disadvantage of presence of micro-cracks on the W surface appeared. In order to examine a potentially effect of the micro-crack on a heat removal durability, a high heat flux testing was carried out for the W divertor mock-up with the polish and the EDM. As the result, all of the W armours endured the repetitive heat load of 1000 cycles at an absorbed heat flux of more than 20 MW/m^2, which strongly encourages the realization of the PFUs of the ITER full-W divertor with the various geometrical shape and the high accuracy tolerance. | |||||
| 書誌情報 |
Fusion Engineering and Design 109–111 (2016) 1148–1152 巻 109-111, p. 1148-1152, 発行日 2016-01 |
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| 出版者 | ||||||
| 出版者 | Elsevier B.V. | |||||
| 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.2016.01.001 | |||||
| 関連サイト | ||||||
| 識別子タイプ | URI | |||||
| 関連識別子 | http://www.sciencedirect.com/science/article/pii/S0920379616300023 | |||||
| 関連名称 | http://www.sciencedirect.com/science/article/pii/S0920379616300023 | |||||
