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Preliminary study on the fabrication of 14Cr-ODS FeCrAl alloy by powder forging
Wu, Sajian1,2,3; Li, Jing1,2; Li, Changji4; Li, Yiyi1,2; Xiong, Liangyin1,2; Liu, Shi1,2
Corresponding AuthorLi, Jing(jingli@imr.ac.cn) ; Liu, Shi(sliu@imr.ac.cn)
2021-08-30
Source PublicationJOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
ISSN1005-0302
Volume83Pages:49-57
AbstractA 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.
KeywordODS FeCrAl alloy Powder forging Porosity Oxide nanoparticle Mechanical properties
Funding OrganizationNational Defense Science and Technology Industry Nuclear Material Technology Innovation Center Project
DOI10.1016/j.jmst.2020.12.032
Indexed BySCI
Language英语
Funding ProjectNational Defense Science and Technology Industry Nuclear Material Technology Innovation Center Project[ICNM-2020-ZH-17]
WOS Research AreaMaterials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000661886200005
PublisherJOURNAL MATER SCI TECHNOL
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/160469
Collection中国科学院金属研究所
Corresponding AuthorLi, Jing; Liu, Shi
Affiliation1.Chinese Acad Sci, Inst Met Res, CAS Key Lab Nucl Mat & Safety Assessment, Shenyang 110016, Peoples R China
2.Chinese Acad Sci, Shi Changxu Innovat Ctr Adv Mat, Inst Met Res, Shenyang 110016, Peoples R China
3.Univ Sci & Technol China, Sch Mat Sci & Engn, 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
Recommended Citation
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.
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