Formation Mechanism of Nanoparticles in Fe-Cr-Al ODS Alloy Fabricated by Direct Oxidation Method

doi:10.1007/s40195-020-01184-z

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	Formation Mechanism of Nanoparticles in Fe-Cr-Al ODS Alloy Fabricated by Direct Oxidation Method
	Yan, Fuzhao 1,2; Li, Jing 1; Li, Yiyi 1; Xiong, Liangyin 1; Liu, Shi 1
刊名	ACTA METALLURGICA SINICA-ENGLISH LETTERS
	2021-01-07
页码	10
关键词	Fe-Cr-Al ODS alloy Direct oxidation Iron oxide layer Y-Al-O nanoparticles Formation mechanism
ISSN号	1006-7191
DOI	10.1007/s40195-020-01184-z
通讯作者	Li, Jing(jingli@imr.ac.cn) ; Liu, Shi(sliu@imr.ac.cn)
英文摘要	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.
资助项目	National Defense Science and Technology Industry Nuclear Material Technology Innovation Center Project[ICNM-2020-ZH-17]
WOS研究方向	Metallurgy & Metallurgical Engineering
语种	英语
出版者	CHINESE ACAD SCIENCES, INST METAL RESEARCH
WOS记录号	WOS:000607045300001
资助机构	National Defense Science and Technology Industry Nuclear Material Technology Innovation Center Project
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/158881]
专题	金属研究所_中国科学院金属研究所
通讯作者	Li, Jing; Liu, Shi
作者单位	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
推荐引用方式 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.