A Review on Heterogeneous Nanostructures: A Strategy for Superior Mechanical Properties in Metals
文献类型：期刊论文
| 作者 | Ma Y(马彦); Yang MX(杨沐鑫) ; Yuan FP(袁福平); Wu XL(武晓雷)
|
| 刊名 | METALS
 |
| 出版日期 | 2019-05-01 |
| 卷号 | 9期号:5页码:32 |
| 关键词 | strength ductility heterogeneous nanostructures back-stress hardening strain gradient |
| ISSN号 | 2075-4701 |
| DOI | 10.3390/met9050598 |
| 通讯作者 | Yuan, Fuping(fpyuan@lnm.imech.ac.cn) |
| 英文摘要 | Generally, strength and ductility are mutually exclusive in homogeneous metals. Nanostructured metals can have much higher strength when compared to their coarse-grained counterparts, while simple microstructure refinement to nanoscale generally results in poor strain hardening and limited ductility. In recent years, heterogeneous nanostructures in metals have been proven to be a new strategy to achieve unprecedented mechanical properties that are not accessible to their homogeneous counterparts. Here, we review recent advances in overcoming this strength-ductility trade-off by the designs of several heterogeneous nanostructures in metals: heterogeneous grain/lamellar/phase structures, gradient structure, nanotwinned structure and structure with nanoprecipitates. These structural heterogeneities can induce stress/strain partitioning between domains with dramatically different strengths, strain gradients and geometrically necessary dislocations near domain interfaces, and back-stress strengthening/hardening for high strength and large ductility. This review also provides the guideline for optimizing the mechanical properties in heterogeneous nanostructures by highlighting future challenges and opportunities. |
| 分类号 | 二类/Q1 |
| WOS关键词 | STRAIN-RATE SENSITIVITY ; AUSTENITIC STAINLESS-STEEL ; SEVERE PLASTIC-DEFORMATION ; HIGH-TENSILE DUCTILITY ; MEDIUM-ENTROPY ALLOY ; GRAIN-SIZE ; HIGH-STRENGTH ; MICROSTRUCTURAL EVOLUTION ; BACK STRESS ; FRACTURE-BEHAVIOR |
| 资助项目 | National Key R&D Program of China[2017YFA0204402] ; National Key R&D Program of China[2017YFB0202802] ; National Natural Science Foundation of China[11672313] ; National Natural Science Foundation of China[11572328] ; National Natural Science Foundation of China[51601204] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB22040503] |
| WOS研究方向 | Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000478818700115 |
| 资助机构 | National Key R&D Program of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences |
| 其他责任者 | Yuan, Fuping |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/79760]  |
| 专题 | 力学研究所_非线性力学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Ma Y,Yang MX,Yuan FP,et al. A Review on Heterogeneous Nanostructures: A Strategy for Superior Mechanical Properties in Metals[J]. METALS,2019,9(5):32. |
| APA | 马彦,杨沐鑫,袁福平,&武晓雷.(2019).A Review on Heterogeneous Nanostructures: A Strategy for Superior Mechanical Properties in Metals.METALS,9(5),32. |
| MLA | 马彦,et al."A Review on Heterogeneous Nanostructures: A Strategy for Superior Mechanical Properties in Metals".METALS 9.5(2019):32. |
入库方式： OAI收割
来源：力学研究所
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