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Characterization of oxide dispersoids and mechanical properties of 14Cr-ODS FeCrAl alloys
Wu, Sajian1,2; Li, Jing1; Li, Wuhui3; Liu, Shi1
Corresponding AuthorLi, Jing(jingli@imr.ac.cn) ; Liu, Shi(sliu@imr.ac.cn)
2020-01-25
Source PublicationJOURNAL OF ALLOYS AND COMPOUNDS
ISSN0925-8388
Volume814Pages:10
AbstractTwo variants of 14-Cr oxide dispersion strengthened FeCrAl alloys are fabricated by MA method. The morphology, phase and oxide/matrix interface structure of the nano-oxide dispersoids in both alloys are characterized by TEM, HRTEM, TKD and XRD. Almost all the small precipitates in Fe-14Cr-4.5Al-2W-0.4Ti-0.4Y alloy are identified as orthorhombic YAlO3 particles. In Fe-14Cr-4.5Al-2W-0.4Ti-0.3Zr-0.4Y ODS alloy, Y-2(Zr0.4Ti0.6)(2)O-7 particle with better coherent relationship with the matrix is found. Almost 23% Y-2(Zr0.4Ti0.6)(2)O-7 and YAlO3 particles coexist, resulting in refinement of average diameter of oxide dispersoids and improvement of mechanical strength. Tensile tests from room temperature to 1000 degrees C demonstrate the attainment of strength-toughness matching in these ODS FeCrAl alloys. The inter-granular fracture after the tensile tests at elevated temperature indicates that grain boundary sliding may be the dominant mechanism for deformation. (C) 2019 Elsevier B.V. All rights reserved.
KeywordODS FeCrAl alloys Oxide dispersoids Crystallographic structure Mechanical properties
Funding OrganizationShenyang Municipal Bureau of Science and Technology
DOI10.1016/j.jallcom.2019.152282
Indexed BySCI
Language英语
Funding ProjectShenyang Municipal Bureau of Science and Technology
WOS Research AreaChemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectChemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000490765400012
PublisherELSEVIER SCIENCE SA
Citation statistics
Cited Times:7[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/135597
Collection中国科学院金属研究所
Corresponding AuthorLi, Jing; Liu, Shi
Affiliation1.Chinese Acad Sci, Inst Met Res, Key Lab Nucl Mat & Safety Assessment, Mat Special Environm Div, Shenyang 110016, Liaoning, Peoples R China
2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Liaoning, Peoples R China
3.Henan Univ Sci & Technol, Sch Mat Sci Engn, Luoyang 9471003, Peoples R China
Recommended Citation
GB/T 7714
Wu, Sajian,Li, Jing,Li, Wuhui,et al. Characterization of oxide dispersoids and mechanical properties of 14Cr-ODS FeCrAl alloys[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2020,814:10.
APA Wu, Sajian,Li, Jing,Li, Wuhui,&Liu, Shi.(2020).Characterization of oxide dispersoids and mechanical properties of 14Cr-ODS FeCrAl alloys.JOURNAL OF ALLOYS AND COMPOUNDS,814,10.
MLA Wu, Sajian,et al."Characterization of oxide dispersoids and mechanical properties of 14Cr-ODS FeCrAl alloys".JOURNAL OF ALLOYS AND COMPOUNDS 814(2020):10.
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