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Microstructure evolution and mechanical properties of 316H weld metal during aging
Wei, Shitong1; Zhao, Langlang2,3; Gao, Dianbao4; Lu, Shanping2
Corresponding AuthorLu, Shanping(shplu@imr.ac.cn)
2020-05-02
Source PublicationMATERIALS SCIENCE AND TECHNOLOGY
ISSN0267-0836
Volume36Issue:7Pages:793-804
AbstractA standard 316H welding wire was used to obtain 6% delta-ferrite in the weld metal by the automatic tungsten inert gas welding. The effect of aging time at 750 degrees C on microstructure and mechanical properties of the weld metal were analysed. The results showed that as the aging time increased, the delta-ferrite fraction decreased, and finally, delta-ferrite was no longer seen, the M23C6 fraction first increased and then decreased, and the sigma phase fraction increased. Finally, the fractions of M23C6 and sigma phase kept stable, but the size increased. Accordingly, as the aging time increased, the yield and tensile strengths first decreased significantly, then increased obviously and finally decreased slightly again, while the elongation and impact energy decreased all the time.
KeywordTungsten inert gas welding aging treatment delta-ferrite M23C6 sigma phase mechanical property
Funding OrganizationOpening Foundation of Key Laboratory of Nuclear Materials and Safety Assessment, Institute of Metal Research, Chinese Academy of Sciences ; China Institute of Atomic Energy
DOI10.1080/02670836.2020.1743597
Indexed BySCI
Language英语
Funding ProjectOpening Foundation of Key Laboratory of Nuclear Materials and Safety Assessment, Institute of Metal Research, Chinese Academy of Sciences[2019NMSAKF04] ; China Institute of Atomic Energy[2016-DGB-I-KYSC-0024]
WOS Research AreaMaterials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000524078800001
PublisherTAYLOR & FRANCIS LTD
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/137762
Collection中国科学院金属研究所
Corresponding AuthorLu, Shanping
Affiliation1.Chinese Acad Sci, Inst Met Res, Key Lab Nucl Mat & Safety Assessment, Shenyang, Peoples R China
2.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
3.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang, Peoples R China
4.China First Heavy Ind, Nucl Power & Petrochem Business Grp, Dalian, Peoples R China
Recommended Citation
GB/T 7714
Wei, Shitong,Zhao, Langlang,Gao, Dianbao,et al. Microstructure evolution and mechanical properties of 316H weld metal during aging[J]. MATERIALS SCIENCE AND TECHNOLOGY,2020,36(7):793-804.
APA Wei, Shitong,Zhao, Langlang,Gao, Dianbao,&Lu, Shanping.(2020).Microstructure evolution and mechanical properties of 316H weld metal during aging.MATERIALS SCIENCE AND TECHNOLOGY,36(7),793-804.
MLA Wei, Shitong,et al."Microstructure evolution and mechanical properties of 316H weld metal during aging".MATERIALS SCIENCE AND TECHNOLOGY 36.7(2020):793-804.
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