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Synergic Evolution of Microstructure-Texture-Stored Energy in Rare-Earth-Added Interstitial-Free Steels Undergoing Static Recrystallization

文献类型：期刊论文

作者Liu, Peng1,2; Hou, Xiaodong3; Yang, Chaoyun1; Luan, Yikun1,2; Zheng, Chengwu1,2; Li, Dianzhong1,2
刊名ACTA METALLURGICA SINICA-ENGLISH LETTERS
出版日期2022-12-03
页码20
关键词Static recrystallization IF steels RE elements Texture Grain coarsening Slip systems
ISSN号1006-7191
DOI10.1007/s40195-022-01492-6
通讯作者Luan, Yikun(ykluan@imr.ac.cn) ; Li, Dianzhong(dzli@imr.ac.cn)
英文摘要Synergic evolution of microstructure-texture-stored energy in interstitial-free (IF) steels has been investigated to elaborate the effect of dissolved rare-earth (RE) elements on static recrystallization. Grain size, texture fraction and geometrically necessary dislocation distribution of IF steel samples annealed for different times were compared, suggesting that RE elements could postpone recrystallization nucleation but accelerate grain coarsening. The visco-plastic self-consistent model was primarily adopted and verified, then used to calculate the relative activities of different slip systems. It was proved that the compatible deformation of IF steels was very sensitive to dissolved RE elements, in particular the {110}(6)< 111 >(2) slip systems became extremely inactive, leading to an alpha-fibre textures rich configuration of RE-IF steels. Although both IF steels have the same stored energy sequence of which gamma-fibre takes precedence in nucleation followed by alpha-fibre, the nucleation rates of alpha/gamma-fibres driven by the reduced stored energy slowed down in RE-IF steels. Further nucleation-path analyses revealed that shear bands within gamma-fibre mainly sacrificed for grain nucleation of {111}< 110 > orientation, while alpha-fibre especially prior grain boundaries therein preferred supplying nucleation sites for {554}< 225 > grains, which accounting for the competitive growth of gamma-fibre textures in RE-IF steels rather than being dominated by a single orientation. After grain growth, the major texture of Normal-IF steels had been transferred to {554}< 225 > from {111}< 110 >, while {554}< 225 > in RE-IF steels still inherited the orientation advantage and grew up rapidly, thus inducing the grain coarsening. As this work offers a significant understanding of RE microalloying effect on static recrystallization, it will provide references for alloy design and industrial application of IF steels.
资助项目National Natural Science Foundation of China[52101165] ; National Natural Science Foundation of China[52031013] ; National Natural Science Foundation of China[52071322] ; National Natural Science Foundation of China[U1708252] ; Key Research Program of the Chinese Academy of Sciences[ZDRW-CN-2021-3] ; Key Research Program of the Chinese Academy of Sciences[KFG-2018107]
WOS研究方向Metallurgy & Metallurgical Engineering
语种英语
WOS记录号WOS:000893388900001
出版者CHINESE ACAD SCIENCES, INST METAL RESEARCH
资助机构National Natural Science Foundation of China ; Key Research Program of the Chinese Academy of Sciences
源URL[http://ir.imr.ac.cn/handle/321006/176086]  
专题金属研究所_中国科学院金属研究所
通讯作者Luan, Yikun; Li, Dianzhong
作者单位1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China
3.Ctr Excellence Adv Mat, Dongguan 523808, Peoples R China
推荐引用方式
GB/T 7714		 Liu, Peng,Hou, Xiaodong,Yang, Chaoyun,et al. Synergic Evolution of Microstructure-Texture-Stored Energy in Rare-Earth-Added Interstitial-Free Steels Undergoing Static Recrystallization[J]. ACTA METALLURGICA SINICA-ENGLISH LETTERS,2022:20.
APA Liu, Peng,Hou, Xiaodong,Yang, Chaoyun,Luan, Yikun,Zheng, Chengwu,&Li, Dianzhong.(2022).Synergic Evolution of Microstructure-Texture-Stored Energy in Rare-Earth-Added Interstitial-Free Steels Undergoing Static Recrystallization.ACTA METALLURGICA SINICA-ENGLISH LETTERS,20.
MLA Liu, Peng,et al."Synergic Evolution of Microstructure-Texture-Stored Energy in Rare-Earth-Added Interstitial-Free Steels Undergoing Static Recrystallization".ACTA METALLURGICA SINICA-ENGLISH LETTERS (2022):20.

入库方式： OAI收割

来源：金属研究所

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