IMECH-IR  > 非线性力学国家重点实验室
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)
Corresponding AuthorDai, L. H.(lhdai@lnm.imech.ac.cn)
Source PublicationMATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
2019-05-29
Volume757Pages:1-13
ISSN0921-5093
AbstractIn 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.
KeywordPearlitic steel wire Carbon state Annealing Strength and ductility Atomistic simulations
DOI10.1016/j.msea.2019.04.086
Indexed BySCI ; EI
Language英语
WOS IDWOS:000470944600001
WOS KeywordCOLD-DRAWN ; CEMENTITE DISSOLUTION ; ATOM-PROBE ; CARBON ; DEFORMATION ; DISLOCATIONS ; DYNAMICS ; FERRITE ; MECHANISMS ; PHASE
WOS Research AreaScience & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectNanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
Funding ProjectNational 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]
Funding OrganizationNational 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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Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/79395
Collection非线性力学国家重点实验室
Recommended Citation
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.
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.
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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