Characterization of the oxide film formed on alumina-forming austenitic stainless steel in deaerated, DH, DO, and OT supercritical water
文献类型：期刊论文
| 作者 | Gao, Yang1; Qiu, Xi2; Su, Haozhan3; Shi, Huigang1; Zhang, Lefu1; Sun, Dayun1; Zhou, Zhangjian4; Liang, Tian5; Guo, Xianglong1 |
| 刊名 | JOURNAL OF NUCLEAR MATERIALS
 |
| 出版日期 | 2024-09-01 |
| 卷号 | 598页码:16 |
| 关键词 | Supercritical water Water chemistry regime Alumina -forming austenitic alloy Corrosion Oxide film |
| ISSN号 | 0022-3115 |
| DOI | 10.1016/j.jnucmat.2024.155177 |
| 通讯作者 | Zhang, Lefu(lfzhang@sjtu.edu.cn) |
| 英文摘要 | The effects of water chemistry (deaerated (DO < 10 ppb), dissolved hydrogen (DH 1.6 ppm), dissolved oxygen (DO 2 ppm), and oxygen treatment (OT 300 ppb O-2 and 100 ppb NH3) on the corrosion behavior of alumina-forming austenitic stainless steel (AFAs) were systematically investigated. A dual-layer oxide scale composed of an inner Fe/Cr/Al oxide layer and an outer Fe-rich oxide layer was observed on the AFAs. Water chemistry was found to have a negligible effect on the inner Fe/Cr/Al oxide layer; however, the morphology of the outer Fe-rich oxide layer was found to depend significantly on the chemistry. No facetted and dense hematite, which effectively protected the alloy and led to lower weight gain (less oxidation) over prolonged exposure, was formed in the outer oxide layer in oxidizing environments (DO and OT). Conversely, columnar magnetite with a porous structure was formed in outer oxide layer in reducing environments (deaerated and DH) in the absence of oxygen, with a higher weight gain observed. The addition of NH3 increased the pH of the supercritical water (SCW), thereby promoting alumina dissolution and rendering the OT conditions undesirable for use in a supercritical water-cooled reactor (SCWR). This study provides valuable insight into the behavior of AFAs in SCW and highlights the importance of carefully controlling SCW chemistry to optimize material performance. |
| 资助项目 | National Key Research and Development Program of China[2018YFE0116200] |
| WOS研究方向 | Materials Science ; Nuclear Science & Technology |
| 语种 | 英语 |
| WOS记录号 | WOS:001249573600003 |
| 出版者 | ELSEVIER |
| 资助机构 | National Key Research and Development Program of China |
| 源URL |  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Zhang, Lefu |
| 作者单位 | 1.Shanghai Jiao Tong Univ, Sch Nucl Sci & Engn, Shanghai 200240, Peoples R China 2.Nucl Power Inst China, Sci & Technol Reactor Syst Design Technol Lab, Chengdu 610213, Peoples R China 3.China Inst Atom Energy, Beijing 102413, Peoples R China 4.Univ Sci & Technol Beijing, Sch Mat Sci & Engn, Beijing 10083, Peoples R China 5.Chinese Acad Sci, Key Lab Nucl Mat & Safety Assessment, Inst Met Res, Shenyang 110016, Peoples R China |
| 推荐引用方式 GB/T 7714 | Gao, Yang,Qiu, Xi,Su, Haozhan,et al. Characterization of the oxide film formed on alumina-forming austenitic stainless steel in deaerated, DH, DO, and OT supercritical water[J]. JOURNAL OF NUCLEAR MATERIALS,2024,598:16. |
| APA | Gao, Yang.,Qiu, Xi.,Su, Haozhan.,Shi, Huigang.,Zhang, Lefu.,...&Guo, Xianglong.(2024).Characterization of the oxide film formed on alumina-forming austenitic stainless steel in deaerated, DH, DO, and OT supercritical water.JOURNAL OF NUCLEAR MATERIALS,598,16. |
| MLA | Gao, Yang,et al."Characterization of the oxide film formed on alumina-forming austenitic stainless steel in deaerated, DH, DO, and OT supercritical water".JOURNAL OF NUCLEAR MATERIALS 598(2024):16. |
入库方式： OAI收割
来源：金属研究所
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