IMR OpenIR
In situ observation of bending stress-deflection response of metallic glass
R. T. Qu; H. S. Liu; Z. F. Zhang
2013
Source PublicationMaterials Science and Engineering a-Structural Materials Properties Microstructure and Processing
ISSN0921-5093
Volume582Pages:155-161
AbstractUnderstanding the shear banding mechanism is of significance not only for improving the mechanical performance of metallic glassy components but also for designing new metallic glassy materials with better combinations of strength and toughness. In this study, through an in situ bending experiment under a scanning electron microscope, the shear banding behavior and the bending stress-deflection response were investigated. We found that the flexural strength was higher than either the tensile strength or the compressive strength of the identical metallic glass. The initial appearance of shear bands was observed at a stress lower than the flexural yield strength. As shear band propagating stably, the flexural stress increases with increasing the deflection, which is similar to but analytically found different with the traditional "work-hardening" behavior of metallic crystalline materials. At the peak stress, a shear banding instability with an abrupt increment of plastic deformation localization and shear cracking was found. Some shear band zones were observed and the size of the zone in tension side of the bending sample was found larger than that in compression side. (C) 2013 Elsevier B.V. All rights reserved.
description.department[qu, r. t. ; liu, h. s. ; zhang, z. f.] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china. ; zhang, zf (reprint author), chinese acad sci, inst met res, shenyang natl lab mat sci, 72 wenhua rd, shenyang 110016, peoples r china. ; zhfzhang@imr.ac.cn
KeywordMetallic Glass Shear Band Bending Test In Situ Observation Shear Bands Mechanical-properties Fracture Mechanisms Tensile Plasticity Amorphous-alloys Bulk Temperature Ductility Behavior Evolution
URL查看原文
Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/71437
Collection中国科学院金属研究所
Recommended Citation
GB/T 7714
R. T. Qu,H. S. Liu,Z. F. Zhang. In situ observation of bending stress-deflection response of metallic glass[J]. Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,2013,582:155-161.
APA R. T. Qu,H. S. Liu,&Z. F. Zhang.(2013).In situ observation of bending stress-deflection response of metallic glass.Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,582,155-161.
MLA R. T. Qu,et al."In situ observation of bending stress-deflection response of metallic glass".Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing 582(2013):155-161.
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
[R. T. Qu]'s Articles
[H. S. Liu]'s Articles
[Z. F. Zhang]'s Articles
Baidu academic
Similar articles in Baidu academic
[R. T. Qu]'s Articles
[H. S. Liu]'s Articles
[Z. F. Zhang]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[R. T. Qu]'s Articles
[H. S. Liu]'s Articles
[Z. F. Zhang]'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.