Effects of Nb addition and heat treatment on the microstructure, mechanical property and internal friction behavior of FeCrAlMo cladding alloys
文献类型：期刊论文
| 作者 | Wang, H.1,2 ; Gao, Y. X.3; Sun, M.; Li, G.2; He, K.2; An, X. G.1; Jiang, W. B.3; Fang, Q. F.; Wang, X. P.
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| 刊名 | JOURNAL OF NUCLEAR MATERIALS
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| 出版日期 | 2022-12-15 |
| 卷号 | 572 |
| 关键词 | Nb containing fecralmo alloys Internal friction Laves phase Pinning effect Strengthening mechanism |
| ISSN号 | 0022-3115 |
| DOI | 10.1016/j.jnucmat.2022.154044 |
| 通讯作者 | Gao, Y. X.(yxgao@issp.ac.cn) |
| 英文摘要 | FeCrAl based alloy was a good candidate as an accident tolerant fuel (ATF) cladding material, this research investigated the influence of Nb addition and heat treatment on the evolution of dispersed Fe 2 Nb precipitates, the mechanical property and Internal Friction (IF) behavior of Nb containing Fe-13Cr-4.5Al2Mo alloys. Fe-13Cr-4.5Al-2Mo-1.5Nb (wt%) annealed at 10 0 0 & DEG;C exhibited the highest ultimate tensile strength (UTS) and an acceptable ductility at each tested temperature (room temperature, 300 & DEG;C, 500 & DEG;C or 800 & DEG;C). For example, the UTS of FeCrAlMo-1.5 wt% Nb at 800 & DEG;C was 95 MPa, 73% higher than that of Nb-free FeCrAlMo alloy at the same test temperature. Comparing with IF results of the cold-rolled Nbfree FeCrAlMo alloy in the first heating cycle, a high IF peak ( & SIM;P 2 ) located at about 680 & DEG;C disappeared in the Nb containing FeCrAlMo alloy. Based on the optical micrographs analysis, the reason may be the pinning effect by the high density nanoscale Fe 2 Nb particles on dislocations, P 2 peak would be expected to find at higher temperature; Likewise, the disappearance of P 3 in the Nb containing FeCrAlMo alloys proved the pinning effect of Fe 2 Nb particles on grain boundaries. Based on the IF theory and microstructure characterization, the disappearance of P 2 (recrystallization peak) and P 3 (grain boundary peak) in the Nb containing FeCrAlMo alloys well proved that this pinning effect by high density Fe 2 Nb nanoscale particles was the main reason for improving the tensile strength of the Nb containing FeCrAlMo alloys. (c) 2022 Elsevier B.V. All rights reserved. |
| WOS关键词 | CR-AL ALLOYS ; PHASE ; DEFORMATION ; STABILITY ; STRENGTH |
| 资助项目 | National Natural Science Foundation of China[51801194] ; National Natural Science Foundation of China[U1967211] ; National Natural Science Foundation of China[52122103] |
| WOS研究方向 | Materials Science ; Nuclear Science & Technology |
| 语种 | 英语 |
| WOS记录号 | WOS:000886081400002 |
| 出版者 | ELSEVIER |
| 资助机构 | National Natural Science Foundation of China |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/131667]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Gao, Y. X. |
| 作者单位 | 1.Chengdu Univ, Inst Adv Study, Interdisciplinary Mat Res Ctr, Chengdu 610106, Peoples R China 2.Nucl Power Inst China, Sci & Technol Reactor Fuel & Mat Lab, Chengdu 610041, Peoples R China 3.Chinese Acad Sci, Inst Solid State Phys, Key Lab Mat Phys, Hefei 230031, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, H.,Gao, Y. X.,Sun, M.,et al. Effects of Nb addition and heat treatment on the microstructure, mechanical property and internal friction behavior of FeCrAlMo cladding alloys[J]. JOURNAL OF NUCLEAR MATERIALS,2022,572. |
| APA | Wang, H..,Gao, Y. X..,Sun, M..,Li, G..,He, K..,...&Wang, X. P..(2022).Effects of Nb addition and heat treatment on the microstructure, mechanical property and internal friction behavior of FeCrAlMo cladding alloys.JOURNAL OF NUCLEAR MATERIALS,572. |
| MLA | Wang, H.,et al."Effects of Nb addition and heat treatment on the microstructure, mechanical property and internal friction behavior of FeCrAlMo cladding alloys".JOURNAL OF NUCLEAR MATERIALS 572(2022). |
入库方式： OAI收割
来源：合肥物质科学研究院
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