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Effect of bainite morphology on deformation compatibility of mesostructure in ferrite/bainite dual-phase steel: Mesostructure-based finite element analysis
Zhao, Zhong-tao; Wang, Xue-song; Qiao, Gui-ying; Zhang, Shi-yu; Liao, Bo; Xiao, Fu-ren
2019-10-15
Source PublicationMATERIALS & DESIGN
ISSN0264-1275
Volume180
AbstractFerrite/bainite (F/B) dual-phase pipeline steels with excellent balance of strength, ductility, and toughness have been broadly applied in oil and gas pipeline transmission. While, the deformation capacity of the steels is related to the grain size, volume fraction and morphology of the two phases. In this work, Representative volume elements (RVE) models based on real mesostructure and abstract model were built, and then the effect of the bainite morphology on the deformation compatibility of the mesostructure for F/B dual-phase steels were studied. Results show that the bainite morphology influence the strain localization within the mesostructure during the deformation process, as a result, the mesostructure with banded bainite possesses better deformation compatibility than the mesostructure with equiaxed bainite. Based on the abstract model, the aspect ratio of bainite significantly affects the deformation compatibility between the ferrite and bainite. The difference of plastic deformation (DPD) and the strain localization factor (SLF) rapidly decrease when the aspect ratio of bainite increases from 1 to 3.06. With the further increase of the aspect ratio of bainite, the DPD and SLF have a little change. The results will help to comprehend the deformation mechanism of the F/B dual-phase steels. (C) 2019 The Authors. Published by Elsevier Ltd.
KeywordF/B dual-phase steel Mesostructure Deformation compatibility Bainite morphology FEM
Indexed BySCI
Language英语
WOS IDWOS:000480624400003
PublisherELSEVIER SCI LTD
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/80703
Collection中国科学院金属研究所
Recommended Citation
GB/T 7714
Zhao, Zhong-tao,Wang, Xue-song,Qiao, Gui-ying,et al. Effect of bainite morphology on deformation compatibility of mesostructure in ferrite/bainite dual-phase steel: Mesostructure-based finite element analysis[J]. MATERIALS & DESIGN,2019,180.
APA Zhao, Zhong-tao,Wang, Xue-song,Qiao, Gui-ying,Zhang, Shi-yu,Liao, Bo,&Xiao, Fu-ren.(2019).Effect of bainite morphology on deformation compatibility of mesostructure in ferrite/bainite dual-phase steel: Mesostructure-based finite element analysis.MATERIALS & DESIGN,180.
MLA Zhao, Zhong-tao,et al."Effect of bainite morphology on deformation compatibility of mesostructure in ferrite/bainite dual-phase steel: Mesostructure-based finite element analysis".MATERIALS & DESIGN 180(2019).
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