Tensile deformation behavior of ferrite-bainite dual-phase pipeline steel

doi:10.1016/j.msea.2021.142230

IMR OpenIR

	Tensile deformation behavior of ferrite-bainite dual-phase pipeline steel
	Tu, Xingyang 1,2; Shi, Xianbo 2; Yan, Wei 2; Li, Changsheng 1; Shi, Quanqiang 2; Shan, Yiyin 2; Yang, Ke 2
通讯作者	Shi, Xianbo(xbshi@imr.ac.cn) ; Li, Changsheng(lics@ral.neu.edu.cn)
	2022-01-13
发表期刊	MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
ISSN	0921-5093
卷号	831 页码:16
摘要	In-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.
关键词	Ferrite and bainite dual-phase steel In-situ tensile test Orientation evolution Geometrically necessary dislocation Slip transfer
资助者	National Key Research and Development Program of China ; State Key Laboratory of Metal Material for Marine Equipment and Application Funding
DOI	10.1016/j.msea.2021.142230
收录类别	SCI
语种	英语
资助项目	National Key Research and Development Program of China[2018YFC0310300] ; State Key Laboratory of Metal Material for Marine Equipment and Application Funding[SKLMEA-K202002]
WOS研究方向	Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000718441600002
出版者	ELSEVIER SCIENCE SA
引用统计	被引频次：26[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/167348
专题	中国科学院金属研究所
通讯作者	Shi, Xianbo; Li, Changsheng
作者单位	1.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
推荐引用方式 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.