Evolution of interface voids and columnar grains of the FeCrAl/RAFMs HIP bonding joint
文献类型：期刊论文
| 作者 | Du, Pei-Song1,2; Wang, Wan-Jing1,2 ; Wang, Ji-Chao3; Xu, Hua-Qi1,2; Wang, Qiao-ling1,2; Yu, Zi-Yang1,2; Zhang, Wen-jing4; Chen, Hao4; Liu, Wei4; Xu, Yu-Ping1,2
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| 刊名 | MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
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| 出版日期 | 2024-11-01 |
| 卷号 | 915 |
| 关键词 | The FeCrAl/RAFMs joint HIP diffusion bonding Interfacial voids Interfacial columnar grains Mechanical properties |
| ISSN号 | 0921-5093 |
| DOI | 10.1016/j.msea.2024.147287 |
| 通讯作者 | Wang, Wan-Jing(wjwang@ipp.ac.cn) |
| 英文摘要 | Hot Isostatic Pressing (HIP) diffusion bonding of FeCrAl and reduced-activation ferritic/martensitic steels (RAFMs) is a novel method for preparing the tritium permeation barrier (TPB) in nuclear fusion reactors. This study primarily investigates the formation mechanisms and evolution of interfacial voids and columnar grains under different bonding temperatures and post-welding heat treatment (PWHT) conditions. It is found that increasing bonding temperature facilitates element diffusion, leading to the closure of interfacial voids. Decarbonization of RAFMs and the increase in Cr content facilitates the formation of interfacial columnar grains, with C playing a crucial role in this process due to its lower diffusion activation energy than Cr. Although appropriate PWHT can reduce the size of interfacial columnar grains, it cannot entirely diminish them. The FeCrAl/IPFs joint effectively prevents the formation of brittle (Cr, C) compounds and interfacial AlN defects. After HIP (1050 degrees C) + PWHT (750 degrees C), the joint achieves high tensile strength and ductility both at room temperature and 300 degrees C. The enhancement in ductility is primarily attributed to the high Schmid factor of interfacial columnar grains, which facilitated the activation of the primary slip system under tensile load, resulting in a high elongation of joints. |
| WOS关键词 | DIFFUSION ; STEEL ; MICROSTRUCTURE ; FERRITE ; ALLOY |
| 资助项目 | National MCF Energy R&D Program of China[2019YFE03130000] ; National Natural Science Foundation of China[52275391] ; Comprehensive Research Facility for Fusion Technology Program of China[2018-000052-73-01001228] |
| WOS研究方向 | Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001321750000001 |
| 出版者 | ELSEVIER SCIENCE SA |
| 资助机构 | National MCF Energy R&D Program of China ; National Natural Science Foundation of China ; Comprehensive Research Facility for Fusion Technology Program of China |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/135628]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Wang, Wan-Jing |
| 作者单位 | 1.Chinese Acad Sci, Inst Plasma Phys, Hefei Inst Phys Sci, Hefei 230031, Peoples R China 2.Univ Sci & Technol China, Hefei 230026, Peoples R China 3.Hefei Comprehens Natl Sci Ctr, Inst Energy, Hefei 230031, Anhui, Peoples R China 4.Tsinghua Univ, Sch Mat Sci & Engn, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Du, Pei-Song,Wang, Wan-Jing,Wang, Ji-Chao,et al. Evolution of interface voids and columnar grains of the FeCrAl/RAFMs HIP bonding joint[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2024,915. |
| APA | Du, Pei-Song.,Wang, Wan-Jing.,Wang, Ji-Chao.,Xu, Hua-Qi.,Wang, Qiao-ling.,...&Luo, Guang-Nan.(2024).Evolution of interface voids and columnar grains of the FeCrAl/RAFMs HIP bonding joint.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,915. |
| MLA | Du, Pei-Song,et al."Evolution of interface voids and columnar grains of the FeCrAl/RAFMs HIP bonding joint".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 915(2024). |
入库方式： OAI收割
来源：合肥物质科学研究院
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