IMR OpenIR
Size effect of deformation nanotwin bundles on their strengthening and toughening in heterogeneous nanostructured Cu
You Zesheng1; Luo Shusen2; Lu Lei2
Corresponding AuthorYou Zesheng(zsyou@njust.edu.cn) ; Lu Lei(llu@imr.ac.cn)
2020-05-11
Source PublicationSCIENCE CHINA-TECHNOLOGICAL SCIENCES
ISSN1674-7321
Pages9
AbstractHerein, we fabricated a heterogeneous nanostructured Cu with deformation nanotwin bundles (NTBs) embedded in a matrix of nanograins by means of dynamic plastic deformation at liquid nitrogen temperature. We conducted fracture mechanical measurements to investigate the effect of longitudinal length of the NTBs on their strengthening and toughening. Results suggest that an increase in the NTB length had a marginal influence on the tensile strength; however, it remarkably promoted both fracture initiation toughness and crack growth toughness. Longer NTBs are more effective not only in intrinsically enhancing crack tip plasticity by suppressing the strain localization and void nucleation but also in serving as crack bridges behind the crack front to extrinsically resist the fracture by shielding the crack tip.
Keywordfracture toughness nanotwins J-integral size effect toughening mechanism
Funding OrganizationNational Key R&D Program of China ; National Natural Science Foundation of China ; Key Research Program of Frontier Science and the International Partnership Program ; Chinese Academy of Sciences ; Liaoning Revitalization Talents Program
DOI10.1007/s11431-020-1584-6
Indexed BySCI
Language英语
Funding ProjectNational Key R&D Program of China[2017YFA0204403] ; National Natural Science Foundation of China[U1608257] ; National Natural Science Foundation of China[51931010] ; Key Research Program of Frontier Science and the International Partnership Program[GJHZ2029] ; Chinese Academy of Sciences ; Liaoning Revitalization Talents Program[XLYC1802026]
WOS Research AreaEngineering ; Materials Science
WOS SubjectEngineering, Multidisciplinary ; Materials Science, Multidisciplinary
WOS IDWOS:000532654000001
PublisherSCIENCE PRESS
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/138752
Collection中国科学院金属研究所
Corresponding AuthorYou Zesheng; Lu Lei
Affiliation1.Nanjing Univ Sci & Technol, Herbert Gleiter Inst Nanosci, Nanjing 210094, Peoples R China
2.Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Peoples R China
Recommended Citation
GB/T 7714
You Zesheng,Luo Shusen,Lu Lei. Size effect of deformation nanotwin bundles on their strengthening and toughening in heterogeneous nanostructured Cu[J]. SCIENCE CHINA-TECHNOLOGICAL SCIENCES,2020:9.
APA You Zesheng,Luo Shusen,&Lu Lei.(2020).Size effect of deformation nanotwin bundles on their strengthening and toughening in heterogeneous nanostructured Cu.SCIENCE CHINA-TECHNOLOGICAL SCIENCES,9.
MLA You Zesheng,et al."Size effect of deformation nanotwin bundles on their strengthening and toughening in heterogeneous nanostructured Cu".SCIENCE CHINA-TECHNOLOGICAL SCIENCES (2020):9.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[You Zesheng]'s Articles
[Luo Shusen]'s Articles
[Lu Lei]'s Articles
Baidu academic
Similar articles in Baidu academic
[You Zesheng]'s Articles
[Luo Shusen]'s Articles
[Lu Lei]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[You Zesheng]'s Articles
[Luo Shusen]'s Articles
[Lu Lei]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

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