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| Preparation of Li4SiO4 Ceramics Tritium Breeder and Its Interface Corrosion Behavior with 14Cr-ODS Steel | |
| Li Guangbin1; Wang Man1; Tan Guangfan1; Xiang Maoqiao2; Zhang Yingchun1 | |
| 2021-08-01 | |
| Source Publication | RARE METAL MATERIALS AND ENGINEERING
 |
| ISSN | 1002-185X |
| Volume | 50Issue:8Pages:2663-2669 |
| Abstract | The chemical compatibility between Li4SiO4 pebbles and ODS steel is important for the safe operation of the fusion reactor. In the present paper, the transformation of microstructure and component for contact interface between ODS steel and pebbles after 300 h heat preservation in an argon atmosphere at 500, 600, and 700 degrees C was investigated. The results show that serious element interdiffusion and reaction can be observed at the interface between Li4SiO4 pebbles and ODS steel at temperatures of 600 similar to 700 degrees C. For the surface of Li4SiO4 pebbles, a thin reaction layer appears due to the diffusion of Fe and Cr from ODS steel, which also causes the increase of density and decrease of crush load from 51 N (500 degrees C) to 32 N (700 degrees C). XRD patterns show that the new phase of LiCrO2 and LiFeO2 appears on the surface of ODS steel, which suggests that the Li and O atoms in Li4SiO4 pebbles can diffuse into ODS, and react with Fe and Cr elements to form corrosion layers at high temperature. The corrosion layers can be divided into two oxide sub-layers at 700 degrees C. The outermost layer is a mixture of LiFeO2 and LiCrO2, and the next layer is mainly LiFeO2. For the surface of ODS steel, the oxygen diffusion coefficient is 2.2x10(-4) cm(2)/s at 700 degrees C for 300 h. It suggests that the ODS steel as a blanket structure material steel needs a resisted corrosion coating in the design of a blanket in the future. |
| Keyword | ODS steel Li4SiO4 pebbles tritium breeder blanket compatibility corrosion |
| Language | 英语 |
| WOS Keyword | RESEARCH-AND-DEVELOPMENT ; TEST BLANKET MODULES ; DESIGN ; ITER ; EUROFER97 ; STRATEGY ; SAFETY |
| WOS Research Area | Materials Science ; Metallurgy & Metallurgical Engineering |
| WOS Subject | Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| WOS ID | WOS:000695646700001 |
| Publisher | NORTHWEST INST NONFERROUS METAL RESEARCH |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.ipe.ac.cn/handle/122111/50205 |
| Collection | 中国科学院过程工程研究所 |
| Corresponding Author | Zhang Yingchun |
| Affiliation | 1.Univ Sci & Technol Beijing, Sch Mat Sci & Engn, Beijing 100083, Peoples R China 2.Chinese Acad Sci, Inst Proc Engn, Beijing 100190, Peoples R China |
| Recommended Citation GB/T 7714 | Li Guangbin,Wang Man,Tan Guangfan,et al. Preparation of Li4SiO4 Ceramics Tritium Breeder and Its Interface Corrosion Behavior with 14Cr-ODS Steel[J]. RARE METAL MATERIALS AND ENGINEERING,2021,50(8):2663-2669. |
| APA | Li Guangbin,Wang Man,Tan Guangfan,Xiang Maoqiao,&Zhang Yingchun.(2021).Preparation of Li4SiO4 Ceramics Tritium Breeder and Its Interface Corrosion Behavior with 14Cr-ODS Steel.RARE METAL MATERIALS AND ENGINEERING,50(8),2663-2669. |
| MLA | Li Guangbin,et al."Preparation of Li4SiO4 Ceramics Tritium Breeder and Its Interface Corrosion Behavior with 14Cr-ODS Steel".RARE METAL MATERIALS AND ENGINEERING 50.8(2021):2663-2669. |
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