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Mechanical characterization and performance of reduced scale mock-up for the CFETR first wall manufactured by SLM process

文献类型：期刊论文

作者Wang, Zhiyong2,3; Wu, Jiefeng1,3; Liu, Zhihong1,3,5; Ma, Jianguo1,3,5; Zhang, Yong2,3; Tao, Jia2,3; Zhou, Nengtao1,3; Deng, Haoxiang2,3; Zhai, Hua4
刊名FUSION ENGINEERING AND DESIGN
出版日期2022-09-01
卷号182
ISSN号0920-3796
关键词First wall Selective laser melting Nuclear fusion Microstructure characterization Mechanical properties
DOI10.1016/j.fusengdes.2022.113235
通讯作者Wang, Zhiyong(zhiyong.wang@ipp.ac.cn) ; Ma, Jianguo(mjg@ipp.ac.cn)
英文摘要The blanket, one of the most important parts in China Fusion Engineering Test Reactor (CFETR), is the carrier with core function for fusion reactor application. First wall (FW) is the key unit of the blanket, facing the plasma directly and playing a decisive role in the fusion reactor. In this study, the reduced scale FW U-shaped mock-up formed by selective laser melting (SLM) was investigated. The influence of microstructure anisotropy on me-chanical properties from vertical direction (z-x) and horizontal direction (x-y) was researched and the feasibility of SLM technology applied to nuclear fusion was explored. Experimental results show that the grain structure is mainly polygonal cellular crystals in x-y direction and elongated columnar crystals in z-x direction under scanning electron microscope (SEM) observation. This grain growth mode is attributed to the complicated temperature field inside molten pool. The inverse pole figures (IPF) in electron backscatter diffraction (EBSD) analysis suggest that the SLMed 316 L in z-x direction has the preferred orientation in (110) and (111) in x-y direction. Compared with 316 L forgings, SLMed 316 L showed higher average tensile strength, elongation rate and Vickers hardness in 2 directions. The impact toughness was enhanced compared with previous references, which demonstrated that SLM technology is proved an effective way to fabricate FW in the nuclear fusion field.
WOS关键词BLANKET
资助项目Science Foundation of Institute of Plasma Physics, Chinese Academy of Sciences[DSJJ-2021 -06] ; Fundamental Research Funds for the Central Universities of China[PA2022GDSK0058]
WOS研究方向Nuclear Science & Technology
语种英语
出版者ELSEVIER SCIENCE SA
WOS记录号WOS:000878506700001
资助机构Science Foundation of Institute of Plasma Physics, Chinese Academy of Sciences ; Fundamental Research Funds for the Central Universities of China
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/130204]  
专题中国科学院合肥物质科学研究院
通讯作者Wang, Zhiyong; Ma, Jianguo
作者单位1.Anhui Prov Key Lab Special Welding Technol, Huainan 232063, Peoples R China
2.Univ Sci & Technol China, Hefei 230026, Peoples R China
3.Chinese Acad Sci, Hefei Inst Phys Sci, Inst Plasma Phys, Hefei 230031, Peoples R China
4.HFUT, Anhui Prov Key Lab Aerosp Struct Parts Forming Tec, Hefei 230009, Peoples R China
5.Hefei Comprehens Natl Sci Ctr, Inst Energy, Hefei 230031, Peoples R China
推荐引用方式
GB/T 7714		 Wang, Zhiyong,Wu, Jiefeng,Liu, Zhihong,et al. Mechanical characterization and performance of reduced scale mock-up for the CFETR first wall manufactured by SLM process[J]. FUSION ENGINEERING AND DESIGN,2022,182.
APA Wang, Zhiyong.,Wu, Jiefeng.,Liu, Zhihong.,Ma, Jianguo.,Zhang, Yong.,...&Zhai, Hua.(2022).Mechanical characterization and performance of reduced scale mock-up for the CFETR first wall manufactured by SLM process.FUSION ENGINEERING AND DESIGN,182.
MLA Wang, Zhiyong,et al."Mechanical characterization and performance of reduced scale mock-up for the CFETR first wall manufactured by SLM process".FUSION ENGINEERING AND DESIGN 182(2022).

入库方式： OAI收割

来源：合肥物质科学研究院

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