| One-step annealing optimizes strength-ductility tradeoff in pearlitic steel wires |
| Xiang L(向亮); Liang LW(梁伦伟); Wang YJ(王云江) ; Chen Y(陈艳); Wang HY(汪海英); Dai LH(戴兰宏)
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| 通讯作者 | Dai, L. H.(lhdai@lnm.imech.ac.cn)
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| 发表期刊 | MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
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| 2019-05-29
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| 卷号 | 757页码:1-13 |
| ISSN | 0921-5093
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| 摘要 | In this paper, the mechanical properties of a cold-drawn wire (epsilon = 2.43) are modulated by simple annealing and the variation of its microstructure is characterized by transmission electron microscopy (TEM), X-ray diffraction (XRD) and molecular dynamics (MD) simulation. The tensile ductility of the wire can be improved for about three times without compromising its strength when being annealed at 325 degrees C for 10-30 min. It is convinced that solid solution of carbon atoms from decomposed cementite lamellae improve the wire strength at low temperature annealing (up to 250 degrees C) and make the wire strength basically equal the as-drawn state even though cementite lamellae are weakened by cementite recrystallization at 325 degrees C. And reversely the weakening cementite layers lead to the great improvement of wire ductility at this time since it relaxes the restriction to the moving of dislocations. At higher annealing temperature, the wire strength decreases with the growth of cementite and ferrite grains. The appearance of nano-recrystallized cementite grains at a medium annealing temperature may be a critical factor governing the enhanced wire mechanical properties. |
| 关键词 | Pearlitic steel wire
Carbon state
Annealing
Strength and ductility
Atomistic simulations
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| DOI | 10.1016/j.msea.2019.04.086
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| 收录类别 | SCI
; EI
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| 语种 | 英语
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| WOS记录号 | WOS:000470944600001
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| 关键词[WOS] | COLD-DRAWN
; CEMENTITE DISSOLUTION
; ATOM-PROBE
; CARBON
; DEFORMATION
; DISLOCATIONS
; DYNAMICS
; FERRITE
; MECHANISMS
; PHASE
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| WOS研究方向 | Science & Technology - Other Topics
; Materials Science
; Metallurgy & Metallurgical Engineering
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| WOS类目 | Nanoscience & Nanotechnology
; Materials Science, Multidisciplinary
; Metallurgy & Metallurgical Engineering
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| 资助项目 | National Key Research and Development Program of China[2017YFB0702003]
; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB22040302]
; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB22040303]
; Natural Science Foundation of China[11572324]
; Natural Science Foundation of China[11790292]
; Key Research Program of Frontier Sciences[QYZDJSSW-JSC011]
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| 项目资助者 | National Key Research and Development Program of China
; Strategic Priority Research Program of the Chinese Academy of Sciences
; Natural Science Foundation of China
; Key Research Program of Frontier Sciences
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| 论文分区 | 一类
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| 力学所作者排名 | 1
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| RpAuthor | Dai, L. H.
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| 引用统计 |
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| 文献类型 | 期刊论文
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| 条目标识符 | http://dspace.imech.ac.cn/handle/311007/79394
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| 专题 | 非线性力学国家重点实验室
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推荐引用方式
GB/T 7714 |
Xiang L,Liang LW,Wang YJ,et al. One-step annealing optimizes strength-ductility tradeoff in pearlitic steel wires[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2019,757:1-13.
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| APA |
向亮,梁伦伟,王云江,陈艳,汪海英,&戴兰宏.(2019).One-step annealing optimizes strength-ductility tradeoff in pearlitic steel wires.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,757,1-13.
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| MLA |
向亮,et al."One-step annealing optimizes strength-ductility tradeoff in pearlitic steel wires".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 757(2019):1-13.
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