| Prediction of the overall mechanical response of gradient nano-grained materials based on grain size distribution profile |
| Yu L(喻立)
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| 通讯作者 | Yu, Li(yuli@imech.ac.cn)
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| 发表期刊 | INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES
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| 2022-07-01
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| 卷号 | 248页码:9 |
| ISSN | 0020-7683
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| 摘要 | Inspired by the gradient structure of biological materials, various gradient nano-grained (GNG) materials, inside which grain size spans several orders of magnitude, have been manufactured in recent years. This kind of material often exhibits extra hardening ability and ultimately achieves synergetic strength and ductility. The extra hardening of GNG materials is closely related to the strain gradient formed during deformation. However, the analytical relation between the structural gradient, strain gradient is still unexplored. Besides, the previous works focused on only one type of GNG material, and the understanding of the effect of different kinds of microstructures is limited. This paper explores the analytical relations between the strain gradient and the average grain size, as well as the grain size gradient in GNG materials. The overall mechanical responses of GNG interstitial-free (IF) steel and GNG Ni are well predicted. The results verify that the extra hardening of GNG materials is dependent on their unique microstructures. The strength and ductility of GNG materials can be improved by adjusting the composition and distribution of coarse grains and nano-grains. |
| 关键词 | Constitutive modeling
Grain size distribution
Strength
Ductility
Gradient structured metals
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| DOI | 10.1016/j.ijsolstr.2022.111686
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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:000803791100005
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| 关键词[WOS] | FATIGUE RESISTANCE
; STRAIN
; PLASTICITY
; DUCTILITY
; DEFORMATION
; STRENGTH
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| WOS研究方向 | Mechanics
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| WOS类目 | Mechanics
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| 资助项目 | National Natural Science Foundation of China[11790292]
; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB22040503]
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| 项目资助者 | National Natural Science Foundation of China
; Strategic Priority Research Program of the Chinese Academy of Sciences
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| 论文分区 | 一类/力学重要期刊
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| 力学所作者排名 | 1
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| RpAuthor | Yu, Li
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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/311007/89529
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| 专题 | 非线性力学国家重点实验室
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| 作者单位 | Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China
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推荐引用方式
GB/T 7714 |
Yu L. Prediction of the overall mechanical response of gradient nano-grained materials based on grain size distribution profile[J]. INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES,2022,248:9.
|
| APA |
喻立.(2022).Prediction of the overall mechanical response of gradient nano-grained materials based on grain size distribution profile.INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES,248,9.
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| MLA |
喻立."Prediction of the overall mechanical response of gradient nano-grained materials based on grain size distribution profile".INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES 248(2022):9.
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