Prediction of the overall mechanical response of gradient nano-grained materials based on grain size distribution profile
文献类型：期刊论文
| 作者 | Yu, Li |
| 刊名 | INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES
 |
| 出版日期 | 2022-07-01 |
| 卷号 | 248页码:9 |
| 关键词 | Constitutive modeling Grain size distribution Strength Ductility Gradient structured metals |
| ISSN号 | 0020-7683 |
| DOI | 10.1016/j.ijsolstr.2022.111686 |
| 通讯作者 | Yu, Li(yuli@imech.ac.cn) |
| 英文摘要 | 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. |
| WOS关键词 | FATIGUE RESISTANCE ; STRAIN ; PLASTICITY ; DUCTILITY ; DEFORMATION ; STRENGTH |
| 资助项目 | National Natural Science Foundation of China[11790292] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB22040503] |
| WOS研究方向 | Mechanics |
| 语种 | 英语 |
| WOS记录号 | WOS:000803791100005 |
| 资助机构 | National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/89528]  |
| 专题 | 力学研究所_非线性力学国家重点实验室 |
| 通讯作者 | Yu, Li |
| 作者单位 | Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yu, Li. 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 | Yu, Li.(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. |
| MLA | Yu, Li."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. |
入库方式： OAI收割
来源：力学研究所
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