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Title:
Fracture behaviors under pure shear loading in bulk metallic glasses
Author: Chen C(陈岑); Gao M; Wang C; Wang WH; Wang ZQ(王自强)
Source: SCIENTIFIC REPORTS
Issued Date: 2016
Volume: 6, Pages:39522
Abstract: Pure shear fracture test, as a special mechanical means, had been carried out extensively to obtain the critical information for traditional metallic crystalline materials and rocks, such as the intrinsic deformation behavior and fracture mechanism. However, for bulk metallic glasses (BMGs), the pure shear fracture behaviors have not been investigated systematically due to the lack of a suitable test method. Here, we specially introduce a unique antisymmetrical four-point bend shear test method to realize a uniform pure shear stress field and study the pure shear fracture behaviors of two kinds of BMGs, Zr-based and La-based BMGs. All kinds of fracture behaviors, the pure shear fracture strength, fracture angle and fracture surface morphology, are systematically analyzed and compared with those of the conventional compressive and tensile fracture. Our results indicate that both the Zrbased and La-based BMGs follow the same fracture mechanism under pure shear loading, which is significantly different from the situation of some previous research results. Our results might offer new enlightenment on the intrinsic deformation and fracture mechanism of BMGs and other amorphous materials.
Language: 英语
Indexed Type: SCI
Corresponding Author: Wang, TC (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China. ; Wang, WH (reprint author), Chinese Acad Sci, Inst Phys, Beijing 100190, Peoples R China.
Correspondent Email: whw@iphy.ac.cn ; tcwang@imech.ac.cn
DOI: 10.1038/srep39522
Related URLs: 查看原文
DOC Type: 期刊论文
WOS Subject: Multidisciplinary Sciences
WOS Subject Extended: Science & Technology - Other Topics
WOS ID: WOS:000390412900001
ISSN: 2045-2322
Funder: National Natural Science Foundation of China [11021262, 11172303, 11132011, 51271195] ; National Basic Research Program of China [2012CB937500, 2015CB856800]
Rank: [Chen, Cen; Wang, Tzu-Chiang] Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China; [Gao, Meng; Wang, Chao; Wang, Wei-Hua] Chinese Acad Sci, Inst Phys, Beijing 100190, Peoples R China
Department: LNM固体物理力学
Classification: 一类
Citation statistics:
Content Type: 期刊论文
URI: http://dspace.imech.ac.cn/handle/311007/59977
Appears in Collections:非线性力学国家重点实验室_期刊论文

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Recommended Citation:
Chen C,Gao M,Wang C,et al. Fracture behaviors under pure shear loading in bulk metallic glasses[J]. SCIENTIFIC REPORTS,2016-01-01,6:39522.
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