Failure analysis of damaged tungsten monoblock components of upper divertor outer target in EAST fusion device
文献类型：期刊论文
| 作者 | Wang, Kang3; Xi, Ya1,2; Zan, Xiang2,5; Zhu, Dahuan4 ; Luo, Laima2,5; Ding, Rui4; Wu, Yucheng2,5
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| 刊名 | NUCLEAR ENGINEERING AND TECHNOLOGY
 |
| 出版日期 | 2024-06-01 |
| 卷号 | 56 |
| 关键词 | Tungsten monoblock Crack Recrystallization Divertor EAST fusion device |
| ISSN号 | 1738-5733 |
| DOI | 10.1016/j.net.2024.01.041 |
| 通讯作者 | Zan, Xiang(zanx@hfut.edu.cn) |
| 英文摘要 | A melting failure of W monoblock components of the upper divertor outer target in EAST occurred during the plasma campaigns in 2019. The failure characters and microstructure evolution of the failed W monoblock have been well investigated on one string (W436 string). Near the strike point region where heat flux density is highest, macroscopic cracks and severe surface damage such as dimensional change, melting and solidification are visible in several W monoblocks. At the same time, debonding, melting and migration of Cu/CuCrZr cooling tube components introduced fatal damage to the structure and function. The heat-induced microstructure evolution in the rest part has been examined via hardness tests and metallography. From the heat flux surface to the cooling tube, hardness increased gradually and the recrystallized grains could be found in the region with the highest temperature, while recrystallization grains also appear in some W monoblocks near the cooling tube area. The detailed microstructure has been investigated by metallography and EBSD. Such cases in EAST provide experiences on the extreme condition of accidental loss of coolant or higher discharge power in future devices. |
| 资助项目 | National MCF Energy R & D Program, China[2019YFE03120003] ; National MCF Energy R & D Program, China[2022YFE03140000] ; Fundamental Research Funds for the Central Universities, China[JZ2023HGQB0165] |
| WOS研究方向 | Nuclear Science & Technology |
| 语种 | 英语 |
| WOS记录号 | WOS:001248434200002 |
| 出版者 | KOREAN NUCLEAR SOC |
| 资助机构 | National MCF Energy R & D Program, China ; Fundamental Research Funds for the Central Universities, China |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/136179]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Zan, Xiang |
| 作者单位 | 1.City Univ Hong Kong, Dept Mat Sci & Engn, Hong Kong, Peoples R China 2.Hefei Univ Technol, Sch Mat Sci & Engn, Hefei 230009, Peoples R China 3.Hefei Univ Technol, Inst Ind & Equipment Technol, Hefei 230009, Peoples R China 4.Chinese Acad Sci, Inst Plasma Phys, HFIPS, Hefei 230031, Peoples R China 5.Natl Local Joint Engn Res Ctr Nonferrous Met & Pro, Hefei 230009, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Kang,Xi, Ya,Zan, Xiang,et al. Failure analysis of damaged tungsten monoblock components of upper divertor outer target in EAST fusion device[J]. NUCLEAR ENGINEERING AND TECHNOLOGY,2024,56. |
| APA | Wang, Kang.,Xi, Ya.,Zan, Xiang.,Zhu, Dahuan.,Luo, Laima.,...&Wu, Yucheng.(2024).Failure analysis of damaged tungsten monoblock components of upper divertor outer target in EAST fusion device.NUCLEAR ENGINEERING AND TECHNOLOGY,56. |
| MLA | Wang, Kang,et al."Failure analysis of damaged tungsten monoblock components of upper divertor outer target in EAST fusion device".NUCLEAR ENGINEERING AND TECHNOLOGY 56(2024). |
入库方式： OAI收割
来源：合肥物质科学研究院
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