Hot Deformation Behavior and Workability of a New Ni-W-Cr Superalloy for Molten Salt Reactors
文献类型：期刊论文
| 作者 | Liu, Long1,2; Zhou, Zijian1; Yu, Jie3; Wang, Xinguang1; Cui, Chuanyong1; Zhang, Rui1; Zhou, Yizhou1; Sun, Xiaofeng1 |
| 刊名 | ACTA METALLURGICA SINICA-ENGLISH LETTERS
 |
| 出版日期 | 2024-06-13 |
| 页码 | 14 |
| 关键词 | Ni-W-Cr Superalloy Hot deformation behavior Constitutive equation Processing map Microstructure evolution |
| ISSN号 | 1006-7191 |
| DOI | 10.1007/s40195-024-01701-4 |
| 通讯作者 | Zhou, Zijian(zjzhou19b@imr.ac.cn) ; Yu, Jie(13354133046@163.com) ; Wang, Xinguang(xgwang11b@imr.ac.cn) |
| 英文摘要 | The hot deformation behavior of a newly developed Ni-W-Cr superalloy for use in 800 degrees C molten salt reactors (MSRs) was looked into by isothermal compression tests in the temperature range of 1050-1200 degrees C with a strain rate of 0.001-1 s-1 under a true strain of 0.693. An Arrhenius-type model for the Ni-W-Cr superalloy was constructed by fitting the corrected flow stress data. In this model, the effect of dispersion of solid solution elements during thermal deformation on microstructure evolution was considered, as well as the effects of friction and adiabatic heating on the temperature and strain rate-dependent variation of flow stresses. The hot deformation activation energy of the Ni-W-Cr superalloy was 323 kJ/mol, which was less than that of the Hastelloy N alloy (currently used in MSRs). According to the rectified flow stress data, processing maps were created. In conjunction with the corresponding deformation microstructures, the flow instability domains of the Ni-W-Cr superalloy were determined to be 1050-1160 degrees C/0.03-1 s-1 and 1170-1200 degrees C/0.001-0.09 s-1. In these deformation conditions, a locally inhomogeneous microstructure was caused by flow-i.e., incomplete dynamic recrystallization and hot working parameters should avoid sliding into these domains. The ideal processing hot deformation domain for the Ni-W-Cr superalloy was determined to be 1170-1200 degrees C/0.6-1 s-1. |
| 资助项目 | National Key R&D Program of China[2021YFB3700601] ; National Key R&D Program of China[2019YFA0705304] ; IMR Innovation Fund[2023-PY08] |
| WOS研究方向 | Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001246015300003 |
| 出版者 | CHINESE ACAD SCIENCES, INST METAL RESEARCH |
| 资助机构 | National Key R&D Program of China ; IMR Innovation Fund |
| 源URL |  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Zhou, Zijian; Yu, Jie; Wang, Xinguang |
| 作者单位 | 1.Chinese Acad Sci, Shi Changxu Innovat Ctr Adv Mat, Inst Met Res, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 3.Fushun Special Steel Co Ltd, Fushun 113000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Long,Zhou, Zijian,Yu, Jie,et al. Hot Deformation Behavior and Workability of a New Ni-W-Cr Superalloy for Molten Salt Reactors[J]. ACTA METALLURGICA SINICA-ENGLISH LETTERS,2024:14. |
| APA | Liu, Long.,Zhou, Zijian.,Yu, Jie.,Wang, Xinguang.,Cui, Chuanyong.,...&Sun, Xiaofeng.(2024).Hot Deformation Behavior and Workability of a New Ni-W-Cr Superalloy for Molten Salt Reactors.ACTA METALLURGICA SINICA-ENGLISH LETTERS,14. |
| MLA | Liu, Long,et al."Hot Deformation Behavior and Workability of a New Ni-W-Cr Superalloy for Molten Salt Reactors".ACTA METALLURGICA SINICA-ENGLISH LETTERS (2024):14. |
入库方式： OAI收割
来源：金属研究所
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