Fabrication and performance evaluation of CICC jacket based on modified N50 austenitic steel for CFETR magnet
文献类型：期刊论文
| 作者 | Zhai, Ruzong1,2,3; Zhang, Honglin1,3; Qi, Xilun4; Wang, Weijun5; Chen, Xinhe4; Xu, Bin1,3; Sun, Mingyue1,3 |
| 刊名 | JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
 |
| 出版日期 | 2024 |
| 卷号 | 28页码:3435-3448 |
| 关键词 | Modified N50 steel Post-dynamic recrystallization Constitutive equation Hot processing map Finite element simulation Hot extrusion Cryogenic mechanical properties |
| ISSN号 | 2238-7854 |
| DOI | 10.1016/j.jmrt.2023.12.278 |
| 通讯作者 | Xu, Bin(bxu@imr.ac.cn) |
| 英文摘要 | The hot deformation behavior of modified N50 austenitic stainless steel in the temperature range 950 similar to 1250 C-degrees and strain rate range of 0.01-50/s was studied by uniaxial compression experiment. The processing map and the constitutive equation for the finite element simulation were established, and the recrystallization mechanism was discussed. The results indicated that the dominant deformation mode DDRX (discontinuous dynamic recrystallization) increased with the rise of deformation temperature while the CDRX (continuous dynamic recrystallization) was on the contrary. There is a decrease in global recrystallization with increasing strain rate, up to a threshold 1/s beyond which the global recrystallization began significantly promotion owing to not only the adiabatic heat and higher stored energy, but also quick Post-DRX mechanism induced by delay quenching. The reasonable hot working interval was determined by a hot working map, then the most suitable hot extrusion parameters (1180(degrees)C-100 mm/s) were further obtained with the help of finite element simulation, and ultimately, the industrial hot extrusion trials of N50 pipes with Post-DRX features were further completed. The tensile performance of final jacket pipes was far beyond the current mainstream low-temperature austenitic structural steel and met the requirements of the new generation of superconducting coil jacket materials. |
| 资助项目 | National Key Research and Devel-opment Program[2018YFA0702900] ; Key Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China[52101061] ; National Natural Science Foundation of China[52233017] ; National Natural Science Foundation of China[52203384] ; National Natural Science Foundation of China[2022-PY12] ; IMR Innovation Foundation[ZDRW-CN-2021-2-4-2] ; LingChuang Research Project of China National Nuclear Corporation ; CNNC Science Fund for Talented Young Scholars and Youth Innovation Promotion Association, CAS ; [52173305] |
| WOS研究方向 | Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001154939500001 |
| 出版者 | ELSEVIER |
| 资助机构 | National Key Research and Devel-opment Program ; Key Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; IMR Innovation Foundation ; LingChuang Research Project of China National Nuclear Corporation ; CNNC Science Fund for Talented Young Scholars and Youth Innovation Promotion Association, CAS |
| 源URL |  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Xu, Bin |
| 作者单位 | 1.Chinese Acad Sci, Inst Met Res, Key Lab Nucl Mat & Safety Assessment, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 4.Xinxing Ductile Iron Pipes Co Ltd China, Handan 056000, Peoples R China 5.Chinese Acad Sci, Hefei Inst Phys Sci, Hefei 230031, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhai, Ruzong,Zhang, Honglin,Qi, Xilun,et al. Fabrication and performance evaluation of CICC jacket based on modified N50 austenitic steel for CFETR magnet[J]. JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T,2024,28:3435-3448. |
| APA | Zhai, Ruzong.,Zhang, Honglin.,Qi, Xilun.,Wang, Weijun.,Chen, Xinhe.,...&Sun, Mingyue.(2024).Fabrication and performance evaluation of CICC jacket based on modified N50 austenitic steel for CFETR magnet.JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T,28,3435-3448. |
| MLA | Zhai, Ruzong,et al."Fabrication and performance evaluation of CICC jacket based on modified N50 austenitic steel for CFETR magnet".JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T 28(2024):3435-3448. |
入库方式： OAI收割
来源：金属研究所
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