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Tensile deformation damage behavior of a high deformability pipeline steel with a ferrite and bainite microstructure
Tu, Xingyang1; Shi, Xianbo2,3; Shan, Yiyin2,3; Yan, Wei2,3; Shi, Quanqiang2,3; Li, Yanfen2,3; Li, Changsheng1; Yang, Ke3
Corresponding AuthorShi, Xianbo(xbshi@imr.ac.cn) ; Li, Changsheng(lics@ral.neu.edu.cn)
2020-08-19
Source PublicationMATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
ISSN0921-5093
Volume793Pages:13
AbstractThe work-hardening characteristics and deformation behavior of high deformability pipeline steel with a polygonal ferrite and bainite microstructure were studied in this paper. The high work-hardening ability of polygonal ferrite with 35% bainite (PF+35%B) dual phase sample contributed to its high tensile properties. Electron backscattered diffraction was conducted to analyze the mechanism of the micro-damage behavior. The results of kernel average misorientation and grain reference orientation deviation of the deformation microstructure revealed that the main deformation mechanism of the polygonal ferrite grain was slip with a number of slip systems. Dislocation rearrangement and a local orientation gradient caused by crystal rotation during sliding to cause the formation of micro-voids. The strain dispersion ability of the PF+35%B sample was better than that of the polygonal ferrite with 27% bainite (PF+27%B) dual phase sample. The risk of micro-voids nucleation and crack propagation were reduced to an improved plastic deformation ability for PF+35%B sample. The average Taylor factor (M) of the PF+35%B sample was higher than that of the PF+27%B sample, which indicated the grains of the PF+27%B sample was more liable to slip during deformation and yield under low stress. The evolution characterization of the micro-texture showed that the gamma-fiber was more stable compared with the alpha-fiber, and the stronger gamma-fiber may contribute to the improved plasticity.
KeywordHigh deformability pipeline steel Polygonal ferrite Bainite Deformation damage behavior EBSD
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.2020.139889
Indexed BySCI
Language英语
Funding ProjectNational Key Research and Development Program of China[2018YFC0310302] ; National Key Research and Development Program of China[2017YFB0304901] ; State Key Laboratory of Metal Material for Marine Equipment and Application Funding[SKLMEA-K201901]
WOS Research AreaScience & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectNanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000578957200047
PublisherELSEVIER SCIENCE SA
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/140905
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, Inst Met Res, CAS Key Lab Nucl Mat & Safety Assessment, Shenyang 110016, Peoples R China
3.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
Recommended Citation
GB/T 7714
Tu, Xingyang,Shi, Xianbo,Shan, Yiyin,et al. Tensile deformation damage behavior of a high deformability pipeline steel with a ferrite and bainite microstructure[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2020,793:13.
APA Tu, Xingyang.,Shi, Xianbo.,Shan, Yiyin.,Yan, Wei.,Shi, Quanqiang.,...&Yang, Ke.(2020).Tensile deformation damage behavior of a high deformability pipeline steel with a ferrite and bainite microstructure.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,793,13.
MLA Tu, Xingyang,et al."Tensile deformation damage behavior of a high deformability pipeline steel with a ferrite and bainite microstructure".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 793(2020):13.
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