| Formation Mechanism of Nanoparticles in Fe-Cr-Al ODS Alloy Fabricated by Direct Oxidation Method | |
| Yan, Fuzhao1,2; Li, Jing1; Li, Yiyi1; Xiong, Liangyin1; Liu, Shi1 | |
| Corresponding Author | Li, Jing(jingli@imr.ac.cn) ; Liu, Shi(sliu@imr.ac.cn) |
| 2021-01-07 | |
| Source Publication | ACTA METALLURGICA SINICA-ENGLISH LETTERS
 |
| ISSN | 1006-7191 |
| Pages | 10 |
| Abstract | This study presents the fabrication of 14Cr Fe-Cr-Al oxide dispersion strengthened (ODS) alloy by a direct oxidation process. In order to explain how oxide nanoparticles are formed in the consolidation process, the powders after oxidation are subjected to vacuum thermal treatment at high temperatures. Differential scanning calorimeter, X-ray photoelectron spectroscopy, scanning electron microscopy and transmission electron microscopy techniques are used to detect the generation, evolution of oxides on both the surface and interior of the powder, as well as the type of oxide nanoparticles in the fabricated ODS alloy. It is found that an iron oxide layer is formed on the surface of the powder during low temperature oxidation. And the iron oxide layer would be decomposed after thermal treatment at high temperature. In the consolidation process, the oxygen required by the reaction of alumina and yttrium oxide to produce nanoscale Y-Al-O particles mainly derives from the decomposition of iron oxide layer at elevated temperature and the inward diffusion of oxygen. Using the direct oxidation process, YAlO3 nanoparticles are dispersed in the grains and at the grain boundaries of Fe-Cr-Al ODS alloy. |
| Keyword | Fe-Cr-Al ODS alloy Direct oxidation Iron oxide layer Y-Al-O nanoparticles Formation mechanism |
| Funding Organization | National Defense Science and Technology Industry Nuclear Material Technology Innovation Center Project |
| DOI | 10.1007/s40195-020-01184-z |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Defense Science and Technology Industry Nuclear Material Technology Innovation Center Project[ICNM-2020-ZH-17] |
| WOS Research Area | Metallurgy & Metallurgical Engineering |
| WOS Subject | Metallurgy & Metallurgical Engineering |
| WOS ID | WOS:000607045300001 |
| Publisher | CHINESE ACAD SCIENCES, INST METAL RESEARCH |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/158882 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Li, Jing; Liu, Shi |
| Affiliation | 1.Chinese Acad Sci, Shi Changxu Innovat Ctr Adv Mat, CAS Key Lab Nucl Mat & Safety Assessment, Inst Met Res,Mat Special Environm Div, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China |
| Recommended Citation GB/T 7714 | Yan, Fuzhao,Li, Jing,Li, Yiyi,et al. Formation Mechanism of Nanoparticles in Fe-Cr-Al ODS Alloy Fabricated by Direct Oxidation Method[J]. ACTA METALLURGICA SINICA-ENGLISH LETTERS,2021:10. |
| APA | Yan, Fuzhao,Li, Jing,Li, Yiyi,Xiong, Liangyin,&Liu, Shi.(2021).Formation Mechanism of Nanoparticles in Fe-Cr-Al ODS Alloy Fabricated by Direct Oxidation Method.ACTA METALLURGICA SINICA-ENGLISH LETTERS,10. |
| MLA | Yan, Fuzhao,et al."Formation Mechanism of Nanoparticles in Fe-Cr-Al ODS Alloy Fabricated by Direct Oxidation Method".ACTA METALLURGICA SINICA-ENGLISH LETTERS (2021):10. |
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