IMR OpenIR
Fracture behavior and deformation-induced structure changes of a Ti-based metallic glass using micro-sized cantilevers
Chu, Qiaoling1,6,7; Cao, Qilu1; Zhu, Xiaofei2,6; Zhang, Min1; Zhu, Zhengwang3; Zhang, Haifeng3; Bai, Ruixiang4; Lei, Zhenkun4; Cheng, Peng5; Yan, Cheng6
Corresponding AuthorChu, Qiaoling(chuqiaoling@xaut.edu.cn) ; Zhu, Xiaofei(xfzhu@sut.edu.cn) ; Yan, Cheng(c2.yan@qut.edu.au)
2022-01-26
Source PublicationMATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
ISSN0921-5093
Volume833Pages:9
AbstractMicro-cantilever bending tests are performed to quantify the fracture toughness and reveal the deformation mechanism of a Ti-based metallic glass. Plastic deformation is localized in shear bands initiating from the roots of the notches of the cantilevers. Although the load-displacement curves show considerable ductile failure characteristics, the notch fracture toughness values that obtained from the bending tests are extremely low (similar to 4.7 MPa root m). Size dependent fracture is thought to be observed, where the fracture toughness increases with decreasing the uncracked ligament size of the cantilevers. TEM bright field images show that the shear bands with the width of 4-7 nm present brighter contrast. The regions in vicinity of the shear bands show dark zones (ranging from 3 to 5 nm in size) surrounded by continues bright zones. Cu nanocrystals are found not only inside the shear bands, but also around them. The free volume theory together with the simulation results is applied to explain the formation of shear bands in this Ti-based metallic glass during the bending deformation. The observed Cu nanocrystals are thought to be formed as a consequence of plastic-deformation-assisted crystallization. It is suggested that local atomic rearrangements lead to shifting of Cu nanocrystals towards more stable positions and cause the formation of Cu nanocrystals in regions subjected to high shear stress field.
KeywordMetallic glass Nanocrystallization Shear bands Fracture toughness Notch
Funding OrganizationAustralian Research Council ; National Natural Science Foundation of China ; Postdoctoral Science Foundation of China ; Young Talents Support Plan of Shaanxi Provincial College Association for Science and Technology
DOI10.1016/j.msea.2021.142519
Indexed BySCI
Language英语
Funding ProjectAustralian Research Council[DP180101955] ; National Natural Science Foundation of China[51904243] ; National Natural Science Foundation of China[51974243] ; Postdoctoral Science Foundation of China[2019M653704] ; Young Talents Support Plan of Shaanxi Provincial College Association for Science and Technology[20200416]
WOS Research AreaScience & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectNanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000761614500001
PublisherELSEVIER SCIENCE SA
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/173169
Collection中国科学院金属研究所
Corresponding AuthorChu, Qiaoling; Zhu, Xiaofei; Yan, Cheng
Affiliation1.Xian Univ Technol, Sch Mat & Engn, Xian 710048, Peoples R China
2.Shenyang Univ Technol, Sch Mat & Engn, Shenyang 110870, Peoples R China
3.Chinese Acad Sci, Shi Changxu Innovat Ctr Adv Mat, Inst Met Res, Shenyang 110016, Peoples R China
4.Dalian Univ Technol, State Key Lab Struct Anal Ind Equipment, Dalian 116024, Peoples R China
5.CGN Adv Mat Technol Suzhou Co Ltd, Suzhou, Peoples R China
6.Queensland Univ Technol QUT, Sci & Engn Fac, Sch Chem Phys & Mech Engn, Brisbane, Qld 4001, Australia
7.CGN Delta Jiangsu Plast & Chem Co Ltd, Taicang, Peoples R China
Recommended Citation
GB/T 7714
Chu, Qiaoling,Cao, Qilu,Zhu, Xiaofei,et al. Fracture behavior and deformation-induced structure changes of a Ti-based metallic glass using micro-sized cantilevers[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2022,833:9.
APA Chu, Qiaoling.,Cao, Qilu.,Zhu, Xiaofei.,Zhang, Min.,Zhu, Zhengwang.,...&Yan, Cheng.(2022).Fracture behavior and deformation-induced structure changes of a Ti-based metallic glass using micro-sized cantilevers.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,833,9.
MLA Chu, Qiaoling,et al."Fracture behavior and deformation-induced structure changes of a Ti-based metallic glass using micro-sized cantilevers".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 833(2022):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
[Chu, Qiaoling]'s Articles
[Cao, Qilu]'s Articles
[Zhu, Xiaofei]'s Articles
Baidu academic
Similar articles in Baidu academic
[Chu, Qiaoling]'s Articles
[Cao, Qilu]'s Articles
[Zhu, Xiaofei]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Chu, Qiaoling]'s Articles
[Cao, Qilu]'s Articles
[Zhu, Xiaofei]'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.