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Influence of inter-dendritic segregation on the precipitation behaviour and mechanical properties in a vanadium-containing Fe-Cr-Ni-Mo weld metal
Sun, Jian1,2; Lu, Shanping1,2
Corresponding AuthorLu, Shanping(shplu@imr.ac.cn)
2020-09-01
Source PublicationSCRIPTA MATERIALIA
ISSN1359-6462
Volume186Pages:174-179
AbstractA novel Fe-Cr-Ni-Mo weld metal containing different V content was designed and fabricated by gas metal arc welding and post-weld heat treatment. The excellent mechanical properties with a combination of high strength and good toughness were obtained by synergistic effect of nanoscale carbides, highdensity dislocations and small subgrains. The discrete nanoscale carbides were characterised by transmission electron microscopy and atom probe tomography. Moreover, it was firstly found that the precipitation sites of nanoscale carbides were mainly located at inter-dendritic regions instead of dendritic core regions owing to the heterogeneous distribution of alloying elements. (C) 2020 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
KeywordWelding Transmission electron microscopy Atom probe tomography Inter-dendritic segregation
Funding OrganizationNational Key R&D Program of China ; Natural Science Foundation of Liaoning Province
DOI10.1016/j.scriptamat.2020.05.021
Indexed BySCI
Language英语
Funding ProjectNational Key R&D Program of China[2016YFB0300601] ; Natural Science Foundation of Liaoning Province[2019p-13/30100039]
WOS Research AreaScience & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectNanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000543035500035
PublisherPERGAMON-ELSEVIER SCIENCE LTD
Citation statistics
Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/139558
Collection中国科学院金属研究所
Corresponding AuthorLu, Shanping
Affiliation1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Peoples R China
2.Univ Sci & Technol China, Sch Mat Sci & Engn, 72 Wenhua Rd, Shenyang 110016, Peoples R China
Recommended Citation
GB/T 7714
Sun, Jian,Lu, Shanping. Influence of inter-dendritic segregation on the precipitation behaviour and mechanical properties in a vanadium-containing Fe-Cr-Ni-Mo weld metal[J]. SCRIPTA MATERIALIA,2020,186:174-179.
APA Sun, Jian,&Lu, Shanping.(2020).Influence of inter-dendritic segregation on the precipitation behaviour and mechanical properties in a vanadium-containing Fe-Cr-Ni-Mo weld metal.SCRIPTA MATERIALIA,186,174-179.
MLA Sun, Jian,et al."Influence of inter-dendritic segregation on the precipitation behaviour and mechanical properties in a vanadium-containing Fe-Cr-Ni-Mo weld metal".SCRIPTA MATERIALIA 186(2020):174-179.
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