IMECH-IR  > 非线性力学国家重点实验室
Enhanced co-deformation of a heterogeneous nanolayered Cu/Ni composite
Wang YD1; Li JJ1,2; Lu WJ3; Yuan FP(袁福平)4; Wu XL(武晓雷)4
Corresponding AuthorLi, Jianjun(mejjli@csu.edu.cn)
Source PublicationJOURNAL OF APPLIED PHYSICS
2019-12-07
Volume126Issue:21Pages:9
ISSN0021-8979
AbstractNanolayered metallic composites have attracted intensive scientific interests due to their ultrahigh strength. However, the deformation incompatibility among the component layers with high mechanical contrast leads to extremely low tensile ductility in the nanolayered composites, which is a great setback for their engineering applications. Here, by molecular dynamics simulations, we show that a heterogeneous nanolayered design by combining 2.5 nm and 24 nm Cu/Ni bilayers in a composite in an appropriate way can promote the dislocation activity of the hard phase, i.e., the Ni layers. In the new heterogeneous structure, each 24 nm Cu or Ni layer is coated on both surfaces by one 2.5 nm Cu/Ni bilayer. The simulations show that the dislocations in the 24 nm Ni layers can nucleate and glide almost synchronously with those in the 24 nm Cu layers. The enhanced dislocation activities are attributed to the presence of the 2.5 nm Cu layer that can promote the dislocation nucleation and motion in the 24 nm Ni layer by forming more nodes in the dislocation network of the interface. Published under license by AIP Publishing.
DOI10.1063/1.5121625
Indexed BySCI ; EI
Language英语
WOS IDWOS:000504007300030
WOS KeywordPLASTIC-DEFORMATION ; MECHANICAL-PROPERTIES ; CU ; MICROPILLARS ; MULTILAYERS ; BEHAVIOR ; INSTABILITY ; INTERFACES ; STRENGTH ; AG
WOS Research AreaPhysics
WOS SubjectPhysics, Applied
Funding ProjectNational Key R&D Program of China[2017YFA0204402] ; National Natural Science Foundation of China (NSFC)[11872380] ; Natural Science Foundation of Hunan Province[2019JJ50750] ; Project of State Key Laboratory of High Performance Complex Manufacturing, Central South University[ZZYJKT2018-05] ; Opening fund of State Key Laboratory of Nonlinear Mechanics, China ; Central South University, China
Funding OrganizationNational Key R&D Program of China ; National Natural Science Foundation of China (NSFC) ; Natural Science Foundation of Hunan Province ; Project of State Key Laboratory of High Performance Complex Manufacturing, Central South University ; Opening fund of State Key Laboratory of Nonlinear Mechanics, China ; Central South University, China
Classification二类
Ranking4
ContributorLi, Jianjun
Citation statistics
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/81251
Collection非线性力学国家重点实验室
Affiliation1.Cent S Univ, Sch Mech & Elect Engn, Changsha 410083, Hunan, Peoples R China;
2.Cent S Univ, State Key Lab High Performance Complex Mfg, Changsha 410083, Hunan, Peoples R China;
3.Max Planck Inst Eisenforsch GmbH, Dept Microstruct Phys & Alloy Design, D-40237 Dusseldorf, Germany;
4.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Wang YD,Li JJ,Lu WJ,et al. Enhanced co-deformation of a heterogeneous nanolayered Cu/Ni composite[J]. JOURNAL OF APPLIED PHYSICS,2019,126(21):9.
APA Wang YD,Li JJ,Lu WJ,袁福平,&武晓雷.(2019).Enhanced co-deformation of a heterogeneous nanolayered Cu/Ni composite.JOURNAL OF APPLIED PHYSICS,126(21),9.
MLA Wang YD,et al."Enhanced co-deformation of a heterogeneous nanolayered Cu/Ni composite".JOURNAL OF APPLIED PHYSICS 126.21(2019):9.
Files in This Item: Download All
File Name/Size DocType Version Access License
Jp2019458.pdf(6027KB)期刊论文出版稿开放获取CC BY-NC-SAView Download
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Wang YD]'s Articles
[Li JJ]'s Articles
[Lu WJ]'s Articles
Baidu academic
Similar articles in Baidu academic
[Wang YD]'s Articles
[Li JJ]'s Articles
[Lu WJ]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Wang YD]'s Articles
[Li JJ]'s Articles
[Lu WJ]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: Jp2019458.pdf
Format: Adobe PDF
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.