| Enhanced quasi-static and dynamic shear properties by heterogeneous gradient and lamella structures in 301 stainless steels |
| Xing, JX; Yuan FP(袁福平) ; Wu XL(武晓雷); Yuan, FP (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, 15,North 4th Ring,West Rd, Beijing 100190, Peoples R China.
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| 发表期刊 | MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
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| 2017
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| 卷号 | 680页码:305-316 |
| ISSN | 0921-5093
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| 摘要 | In the present study, quasi-static and dynamic shear response of 301 stainless steel (SS) with gradient structure (GS) and heterogeneous lamella structure (HLS) were investigated by uniaxial tensile tests and Hopkinson-bar tests with hat-shaped specimens. The 301 SS with GS and HLS show a good combination of strength and ductility under quasi-static tensile tests, which is due to the back stress hardening for heterogeneous structures. Before the formation of adiabatic shear band (ASB), the dynamic shear response of 301 SS with coarse-grained (CG) austenitic structure shows a strong linear hardening stage and a plateau stage, which are due to the martensite transformation and the continuous deformation through strain partitioning between different phases, respectively. For 301 SS with CG austenitic structure, the grain size was observed to significantly refined in the ASB, while the reverse phase transformation occurs and the austenite phase increases significantly again in the ASB with increasing shear displacement, resulting in a hardness valley in the ASB at the shear displacement of 2.0 mm. The GS and HLS show excellent dynamic shear properties, this could be due to the back stress hardening for either macroscopically or microscopically heterogeneous structures. The HIS seems to have better impact shear properties than the GS, which indicates that the HIS with microscopically heterogeneous structures could delay the formation of ASB in a better way than the GS with macroscopically heterogeneous structures. The results in the current study could provide insights for obtaining better mechanical properties under dynamic conditions. |
| 关键词 | Hopkinson-bar
Dynamic Shear Response
Adiabatic Shear Band
Gradient Structure
Heterogeneous Lamella Structure
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| DOI | 10.1016/j.msea.2016.10.111
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| URL | 查看原文
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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:000390495600036
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| 关键词[WOS] | Hopkinson-bar
; Dynamic shear response
; Adiabatic shear band
; Gradient structure
; Heterogeneous lamella structure
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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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| 项目资助者 | National Natural Science Foundation of China [11472286, 11572328, 11672313]
; Strategic Priority Research Program of the Chinese Academy of Sciences [XDB22040503]
; National Key Basic Research Program of China [2012CB932203, 2012CB937500]
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| 课题组名称 | LNM材料介观力学性能的表征
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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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| 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/311007/59973
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| 专题 | 非线性力学国家重点实验室
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| 通讯作者 | Yuan, FP (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, 15,North 4th Ring,West Rd, Beijing 100190, Peoples R China. |
推荐引用方式
GB/T 7714 |
Xing, JX,Yuan FP,Wu XL,et al. Enhanced quasi-static and dynamic shear properties by heterogeneous gradient and lamella structures in 301 stainless steels[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2017,680:305-316.
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| APA |
Xing, JX,袁福平,武晓雷,&Yuan, FP .(2017).Enhanced quasi-static and dynamic shear properties by heterogeneous gradient and lamella structures in 301 stainless steels.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,680,305-316.
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| MLA |
Xing, JX,et al."Enhanced quasi-static and dynamic shear properties by heterogeneous gradient and lamella structures in 301 stainless steels".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 680(2017):305-316.
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