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Tensile deformation behavior of ferrite-bainite dual-phase pipeline steel
Tu, Xingyang1,2; Shi, Xianbo2; Yan, Wei2; Li, Changsheng1; Shi, Quanqiang2; Shan, Yiyin2; Yang, Ke2
Corresponding AuthorShi, Xianbo(xbshi@imr.ac.cn) ; Li, Changsheng(lics@ral.neu.edu.cn)
2022-01-13
Source PublicationMATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
ISSN0921-5093
Volume831Pages:16
AbstractIn-situ tensile test accompanied by electron backscatter diffraction (EBSD) analyses were performed on polygonal ferrite (PF) and bainite dual-phase steel, selected regions of interest were analyzed following plastic deformation of the steel. Deformation-induced crystal orientation evolution, localized strain concentration, slip transfer, and geometrically necessary dislocation (GND) density were tracked. Results revealed that heterogeneity deformation facilitated formation subregions with crystal orientation deviation in grain and fragmented the grain by the new low angle grain boundaries (LAGBs) or medium angle grain boundaries (MAGBs). The PF grains with ND// <111> preferred crystal orientation exhibited high orientation stability, and almost all load axes of the selected PF grains moved to the [101] pole, resulting in enhancing {111} <110> orientation component at high strain levels. With the lattice rotation during deformation, the high angle grain boundaries (HAGBs) can change to MAGBs, which was beneficial to maintain coordination deformation among grains. Localized strain concentration can be decreased by the slip transfer across the PF grain boundaries or bainite/PF phase boundaries, which reduced the risk of micro-void formation. Additionally, the variation of alpha 12 GND tensor average value (Ave. alpha 12) revealed that the ferrite was continuous plastic deformation, while the bainite occurred stage hardening. The required strain for the coordination deformation was controlled by strain hardening behavior.
KeywordFerrite and bainite dual-phase steel In-situ tensile test Orientation evolution Geometrically necessary dislocation Slip transfer
Funding OrganizationNational Key Research and Development Program of China ; State Key Laboratory of Metal Material for Marine Equipment and Application Funding
DOI10.1016/j.msea.2021.142230
Indexed BySCI
Language英语
Funding ProjectNational Key Research and Development Program of China[2018YFC0310300] ; State Key Laboratory of Metal Material for Marine Equipment and Application Funding[SKLMEA-K202002]
WOS Research AreaScience & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectNanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000718441600002
PublisherELSEVIER SCIENCE SA
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/167348
Collection中国科学院金属研究所
Corresponding AuthorShi, Xianbo; Li, Changsheng
Affiliation1.Northeastern Univ, State Key Lab Rolling & Automat, Shenyang 110819, Peoples R China
2.Chinese Acad Sci, Shi Changxu Innovat Ctr Adv Mat, Inst Met Res, Shenyang 110016, Peoples R China
Recommended Citation
GB/T 7714
Tu, Xingyang,Shi, Xianbo,Yan, Wei,et al. Tensile deformation behavior of ferrite-bainite dual-phase pipeline steel[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2022,831:16.
APA Tu, Xingyang.,Shi, Xianbo.,Yan, Wei.,Li, Changsheng.,Shi, Quanqiang.,...&Yang, Ke.(2022).Tensile deformation behavior of ferrite-bainite dual-phase pipeline steel.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,831,16.
MLA Tu, Xingyang,et al."Tensile deformation behavior of ferrite-bainite dual-phase pipeline steel".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 831(2022):16.
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