Preliminary study on the fabrication of 14Cr-ODS FeCrAl alloy by powder forging

doi:10.1016/j.jmst.2020.12.032

CORC > 金属研究所 > 中国科学院金属研究所

	Preliminary study on the fabrication of 14Cr-ODS FeCrAl alloy by powder forging
	Wu, Sajian 1,2,3; Li, Jing 2,3; Li, Changji 4; Li, Yiyi 2,3; Xiong, Liangyin 2,3; Liu, Shi 2,3
刊名	JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
	2021-08-30
卷号	83 页码:49-57
关键词	ODS FeCrAl alloy Powder forging Porosity Oxide nanoparticle Mechanical properties
ISSN号	1005-0302
DOI	10.1016/j.jmst.2020.12.032
通讯作者	Li, Jing(jingli@imr.ac.cn) ; Liu, Shi(sliu@imr.ac.cn)
英文摘要	A simple powder forging process was presented herein to fabricate an Fe-14Cr-4.5Al-2W-0.4Ti-0.5Y(2)O(3) ODS FeCrAl alloy. The forged alloy exhibits a high density that exceeds 97 % of the theoretical density. The ODS alloy was investigated in terms of the residual porosity, morphology and phase structure of oxide nanoparticles, impact toughness and tensile properties. It was found that refined grains were obtained during powder forging. A residual porosity less than 1.1 % has no impact on the precipitation of oxide nanoparticles. The average diameter of the oxide particles is 7.99 nm, with a number density of 2.75 x 10(22) m(-3). Almost all of the oxides are identified as orthorhombic YAlO3 particles. The refined grains and uniformly distributed oxide nanoparticles enable the alloy to show excellent mechanical strength and ductility below 700 degrees C, and enable the ductile-to-brittle transition temperature to be close to room temperature. However, a slight decrease in strength at 1000 degrees C and the Charpy upper shelf energy has been suggested to be due to the residual porosity. These results indicate that powder forging can be used as a promising technique for the fabrication of ODS alloys. (C) 2021 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.
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	Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
出版者	JOURNAL MATER SCI TECHNOL
WOS记录号	WOS:000661886200005
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/321006/160468]
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.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 2.Chinese Acad Sci, Inst Met Res, CAS Key Lab Nucl Mat & Safety Assessment, Shenyang 110016, Peoples R China 3.Chinese Acad Sci, Shi Changxu Innovat Ctr Adv Mat, Inst Met Res, Shenyang 110016, Peoples R China 4.Chinese Acad Sci, Inst Met Res, Tech Support Div, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Wu, Sajian,Li, Jing,Li, Changji,et al. Preliminary study on the fabrication of 14Cr-ODS FeCrAl alloy by powder forging[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2021,83:49-57.
APA	Wu, Sajian,Li, Jing,Li, Changji,Li, Yiyi,Xiong, Liangyin,&Liu, Shi.(2021).Preliminary study on the fabrication of 14Cr-ODS FeCrAl alloy by powder forging.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,83,49-57.
MLA	Wu, Sajian,et al."Preliminary study on the fabrication of 14Cr-ODS FeCrAl alloy by powder forging".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 83(2021):49-57.