Functionally graded tungsten/EUROFER coating for DEMO first wall: From laboratory to industrial production
文献类型：期刊论文
| 作者 | Grammes, Thilo; Emmerich, Thomas; Qu DD(屈丹丹) ; Heinze, Oliver; Vassen, Robert; Aktaa, Jarir
|
| 刊名 | FUSION ENGINEERING AND DESIGN
 |
| 出版日期 | 2023-03-01 |
| 卷号 | 188页码:8 |
| ISSN号 | 0920-3796 |
| 关键词 | Plasma-facing component Functionally graded material (FGM) First Wall Finite element simulation Tungsten EUROFER |
| DOI | 10.1016/j.fusengdes.2023.113430 |
| 通讯作者 | Grammes, Thilo(thilo.grammes@kit.edu) |
| 英文摘要 | The First Wall is a crucial component for the realisation of DEMO. It has to protect the tritium breeding blanket from erosion by high-energy particles while letting neutrons pass to enable breeding of tritium fuel. Furthermore, the First Wall needs to pass incoming heat in the MW/m2 range to a cooling system for conversion to electric power. These requirements sum up to one of the harshest environments imaginable for a man-made material. Structural steel components alone cannot withstand these conditions. Tungsten is a viable armour material for the First Wall because of its low sputtering yield, high melting point, low activation and good thermal con-ductivity. It is not suitable though as bulk structural material because of its brittleness. Instead, the DEMO design foresees a First Wall of reduced-activation EUROFER steel, covered with a protective layer of tungsten. Direct tungsten-steel joints suffer from failure during processing or operation because of the thermal expansion mismatch between the two materials. This is solved by application of a functionally graded material as inter-mediate layer between steel and tungsten. Such coatings made of both tungsten and EUROFER, with a compo-sitional gradient, have been produced with vacuum plasma spray technology. This technology enables manufacturing of the required millimetre-thick coatings and is suitable for upscaling. The development was supported by thermo-mechanical finite element simulations of load scenarios during processing and in-vessel service. Driven by promising results of high heat flux tests on larger, coated mock-ups the technology was transferred to industry for upscaling. Plates with a record size of 500 x 250 mm2 and cooling channels were successfully coated. This contribution presents an overview of the development process, covers the latest results of ongoing research on the coating of curved First Wall structures and addresses future requirements. |
| 分类号 | 二类 |
| WOS关键词 | MULTILAYER ; DESIGN ; SYSTEM ; LAYERS ; ITER |
| 资助项目 | European Union via the Euratom Research and Training Programme[101052200 - EUROfusion] |
| WOS研究方向 | Nuclear Science & Technology |
| 语种 | 英语 |
| WOS记录号 | WOS:000922895300001 |
| 资助机构 | European Union via the Euratom Research and Training Programme |
| 其他责任者 | Grammes, Thilo |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/91610]  |
| 专题 | 宽域飞行工程科学与应用中心 |
| 推荐引用方式 GB/T 7714 | Grammes, Thilo,Emmerich, Thomas,Qu DD,et al. Functionally graded tungsten/EUROFER coating for DEMO first wall: From laboratory to industrial production[J]. FUSION ENGINEERING AND DESIGN,2023,188:8. |
| APA | Grammes, Thilo,Emmerich, Thomas,屈丹丹,Heinze, Oliver,Vassen, Robert,&Aktaa, Jarir.(2023).Functionally graded tungsten/EUROFER coating for DEMO first wall: From laboratory to industrial production.FUSION ENGINEERING AND DESIGN,188,8. |
| MLA | Grammes, Thilo,et al."Functionally graded tungsten/EUROFER coating for DEMO first wall: From laboratory to industrial production".FUSION ENGINEERING AND DESIGN 188(2023):8. |
入库方式： OAI收割
来源：力学研究所
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