IMR OpenIR
Research Progress in Shear Banding Deformation and Fracture Mechanisms of Metallic Glasses
Qu Ruitao1,2; Wang Xiaodi1; Wu Shaojie1; Zhang Zhefeng1
Corresponding AuthorQu Ruitao(rtqu@nwpu.edu.cn)
2021-04-11
Source PublicationACTA METALLURGICA SINICA
ISSN0412-1961
Volume57Issue:4Pages:453-472
AbstractPlastic deformation of metallic glasses (MGs) at room temperature usually localizes into shear bands. The shear banding behavior dominates the deformation and fracture mechanisms of MGs and affects their mechanical properties (e. g., strength, plasticity, fracture toughness, fatigue properties, etc.). The shear banding behavior is of vital importance for understanding and improving mechanical properties of MGs; therefore, studies on shear bands have been long-standing hot topics in the MG field. In this paper, based on the previous studies of shear banding behaviors in various MGs, the mechanisms of shear band propagation, cracking, and unstable fracture under monotonic and cyclic loadings are elucidated. The experimental evidence of progressive shear band propagation under uniaxial loading is provided and the mechanisms of shear band cracking under compression are revealed. It is found that the "cold"fracture of shear band can occur when reducing sample size, adding external confinement, or decreasing the testing temperature to stabilize the shear band propagation. Under cyclic loading, the shear-band-mediated fatigue crack initiation and cracking mechanisms are confirmed. Furthermore, the fragmentation in brittle MGs under compression should be caused by split cracking from defects. The effect of sample size on competition between shearing and splitting for brittle MGs is also discussed. Finally, the significant role of external defects (e.g., notches) on shear banding behavior is described and a "defect engineering"strategy for tailoring the mechanical properties of MGs is proposed.
Keywordmetallic glass shear band crack notch size effect
Funding OrganizationNational Natural Science Foundation of China ; Natural Science Foundation of Liaoning Province ; Liaoning Revitalization Talents Program
DOI10.11900/0412.1961.2020.00428
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[51771205] ; Natural Science Foundation of Liaoning Province[2020-MS-011] ; Liaoning Revitalization Talents Program[XLYC1808027]
WOS Research AreaMetallurgy & Metallurgical Engineering
WOS SubjectMetallurgy & Metallurgical Engineering
WOS IDWOS:000636641500008
PublisherSCIENCE PRESS
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/162411
Collection中国科学院金属研究所
Corresponding AuthorQu Ruitao
Affiliation1.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
2.Northwestern Polytech Univ, Sch Mat Sci & Engn, Xian 710072, Peoples R China
Recommended Citation
GB/T 7714
Qu Ruitao,Wang Xiaodi,Wu Shaojie,et al. Research Progress in Shear Banding Deformation and Fracture Mechanisms of Metallic Glasses[J]. ACTA METALLURGICA SINICA,2021,57(4):453-472.
APA Qu Ruitao,Wang Xiaodi,Wu Shaojie,&Zhang Zhefeng.(2021).Research Progress in Shear Banding Deformation and Fracture Mechanisms of Metallic Glasses.ACTA METALLURGICA SINICA,57(4),453-472.
MLA Qu Ruitao,et al."Research Progress in Shear Banding Deformation and Fracture Mechanisms of Metallic Glasses".ACTA METALLURGICA SINICA 57.4(2021):453-472.
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
[Qu Ruitao]'s Articles
[Wang Xiaodi]'s Articles
[Wu Shaojie]'s Articles
Baidu academic
Similar articles in Baidu academic
[Qu Ruitao]'s Articles
[Wang Xiaodi]'s Articles
[Wu Shaojie]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Qu Ruitao]'s Articles
[Wang Xiaodi]'s Articles
[Wu Shaojie]'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.