IMR OpenIR
In situ atomic-scale observation of grain size and twin thickness effect limit in twin-structural nanocrystalline platinum
Wang, Lihua1; Du, Kui2; Yang, Chengpeng1; Teng, Jiao3; Fu, Libo1; Guo, Yizhong1; Zhang, Ze4; Han, Xiaodong1
Corresponding AuthorZhang, Ze(zezhang@zju.edu.cn) ; Han, Xiaodong(xdhan@bjut.edu.cn)
2020-03-03
Source PublicationNATURE COMMUNICATIONS
ISSN2041-1723
Volume11Issue:1Pages:9
AbstractTwin-thickness-controlled plastic deformation mechanisms are well understood for submicron-sized twin-structural polycrystalline metals. However, for twin-structural nanocrystalline metals where both the grain size and twin thickness reach the nanometre scale, how these metals accommodate plastic deformation remains unclear. Here, we report an integrated grain size and twin thickness effect on the deformation mode of twin-structural nanocrystalline platinum. Above a similar to 10nm grain size, there is a critical value of twin thickness at which the full dislocation intersecting with the twin plane switches to a deformation mode that results in a partial dislocation parallel to the twin planes. This critical twin thickness value varies from similar to 6 to 10nm and is grain size-dependent. For grain sizes between similar to 10 to 6nm, only partial dislocation parallel to twin planes is observed. When the grain size falls below 6nm, the plasticity switches to grain boundary-mediated plasticity, in contrast with previous studies, suggesting that the plasticity in twin-structural nanocrystalline metals is governed by partial dislocation activities.
Funding OrganizationBasic Science Center Program for Multiphase Evolution in Hypergravity of the National Natural Science Foundation of China ; Beijing Outstanding Young Scientists Projects ; NSFC ; Beijing Natural Science Foundation ; 111 project ; Fok Ying-Tong Education Foundation of China ; Australian Research Council
DOI10.1038/s41467-020-14876-y
Indexed BySCI
Language英语
Funding ProjectBasic Science Center Program for Multiphase Evolution in Hypergravity of the National Natural Science Foundation of China[51988101] ; Beijing Outstanding Young Scientists Projects[BJJWZYJH01201910005018] ; NSFC[11722429] ; NSFC[51771104] ; NSFC[91860202] ; Beijing Natural Science Foundation[Z180014] ; 111 project[DB18015] ; Fok Ying-Tong Education Foundation of China[151006] ; Australian Research Council[DP190102243]
WOS Research AreaScience & Technology - Other Topics
WOS SubjectMultidisciplinary Sciences
WOS IDWOS:000519260700002
PublisherNATURE PUBLISHING GROUP
Citation statistics
Cited Times:9[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/137690
Collection中国科学院金属研究所
Corresponding AuthorZhang, Ze; Han, Xiaodong
Affiliation1.Beijing Univ Technol, Beijing Key Lab Microstruct & Properties Adv Mat, Beijing 100022, Peoples R China
2.Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China
3.Univ Sci & Technol Beijing, Dept Mat Phys & Chem, Beijing 100083, Peoples R China
4.Zhejiang Univ, Dept Mat Sci, Hangzhou 310008, Zhejiang, Peoples R China
Recommended Citation
GB/T 7714
Wang, Lihua,Du, Kui,Yang, Chengpeng,et al. In situ atomic-scale observation of grain size and twin thickness effect limit in twin-structural nanocrystalline platinum[J]. NATURE COMMUNICATIONS,2020,11(1):9.
APA Wang, Lihua.,Du, Kui.,Yang, Chengpeng.,Teng, Jiao.,Fu, Libo.,...&Han, Xiaodong.(2020).In situ atomic-scale observation of grain size and twin thickness effect limit in twin-structural nanocrystalline platinum.NATURE COMMUNICATIONS,11(1),9.
MLA Wang, Lihua,et al."In situ atomic-scale observation of grain size and twin thickness effect limit in twin-structural nanocrystalline platinum".NATURE COMMUNICATIONS 11.1(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
[Wang, Lihua]'s Articles
[Du, Kui]'s Articles
[Yang, Chengpeng]'s Articles
Baidu academic
Similar articles in Baidu academic
[Wang, Lihua]'s Articles
[Du, Kui]'s Articles
[Yang, Chengpeng]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Wang, Lihua]'s Articles
[Du, Kui]'s Articles
[Yang, Chengpeng]'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.