Knowledge Management System of Hefei Institute of Physical Science，CAS
| Microstructure and mechanical properties of similar and dissimilar joints of RAFM and 316L by electron beam welding | |
Fan Xiaosong1,3; Shen Xu2,4; Zhang Yong2 ; Liu Zhihong2; Wu Jiefeng2; Liu Zhenfei2; Ma Jianguo2
| |
| 2021 | |
| Source Publication | FUSION ENGINEERING AND DESIGN
 |
| ISSN | 0920-3796 |
| Corresponding Author | Fan Xiaosong(fan@ipp.ac.cn) |
| Abstract | 316L is a structural material used in fusion reactor vacuum vessels (VVs), in-vessel component supports, and cooling pipes, while reduced-activation ferritic/martensitic (RAFM) steel is the structural material used in test blanket modules (TBMs). High-energy electron beam welding is a suitable method for welding RAFM/316L joints. To explore the electron beam welding process of RAFM/316L, 150 kV/39 mA are chosen as the welding parameters to connect the dissimilar materials, and the microstructure and mechanical properties of the joint are tested and analyzed after welding. The results demonstrate a magnetic deflection of the 316L/RAFM welding joint due to phase change. Thus, an electron beam shift is made to compensate for this deflection. Microstructural observations indicate that the weld metal (WM) of RAFM/316L comprises lath martensite and a small amount of ferrite. The RAFM heat-affected zone (HAZ) of RAFM/316L can be divided into three regions: a fusion zone comprising coarse ferrite and martensite, a completely quenched zone comprising quenched martensite, and an incompletely quenched zone comprising eutectic ferrite and quenched martensite. Mechanical property test results indicate that the WM of RAFM/316L is better than the 316L base material and WM of 316L/316L in terms of tensile strength, and the top of the RAFM/316L joint is comparable to, but with a weaker bottom, than that of the 316L and RAFM base materials in terms of impact toughness. |
| Keyword | RAFM Electron beam welding Microstructure Mechanical properties |
| DOI | 10.1016/j.fusengdes.2020.112130 |
| WOS Keyword | FERRITIC-MARTENSITIC STEELS ; EVOLUTION ; PROGRESS ; DESIGN |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | Comprehensive Research Facility for Fusion Technology Program of China[2018-000052-73-01-001228] ; China National Magnetic Confinement Fusion Science Program[2015GB107000] ; Shenzhen Clean Energy Research Institute |
| Funding Organization | Comprehensive Research Facility for Fusion Technology Program of China ; China National Magnetic Confinement Fusion Science Program ; Shenzhen Clean Energy Research Institute |
| WOS Research Area | Nuclear Science & Technology |
| WOS Subject | Nuclear Science & Technology |
| WOS ID | WOS:000603550400001 |
| Publisher | ELSEVIER SCIENCE SA |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.hfcas.ac.cn:8080/handle/334002/119996 |
| Collection | 中国科学院合肥物质科学研究院 |
| Corresponding Author | Fan Xiaosong |
| Affiliation | 1.Shenzhen Univ, Coll Phys & Optoelect Engn, Shenzhen 518060, Peoples R China 2.Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Peoples R China 3.Shenzhen Univ, Adv Energy Res Ctr, Shenzhen 518060, Peoples R China 4.Hefei Univ Technol, Sch Mat Sci & Engn, Hefei 230009, Peoples R China |
| Recommended Citation GB/T 7714 | Fan Xiaosong,Shen Xu,Zhang Yong,et al. Microstructure and mechanical properties of similar and dissimilar joints of RAFM and 316L by electron beam welding[J]. FUSION ENGINEERING AND DESIGN,2021,162. |
| APA | Fan Xiaosong.,Shen Xu.,Zhang Yong.,Liu Zhihong.,Wu Jiefeng.,...&Ma Jianguo.(2021).Microstructure and mechanical properties of similar and dissimilar joints of RAFM and 316L by electron beam welding.FUSION ENGINEERING AND DESIGN,162. |
| MLA | Fan Xiaosong,et al."Microstructure and mechanical properties of similar and dissimilar joints of RAFM and 316L by electron beam welding".FUSION ENGINEERING AND DESIGN 162(2021). |
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