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Evolution of shear-band cracking in metallic glass under cyclic compression
Wang, Xiao Di; Qu, Rui Tao; Liu, Zeng Qian; Zhang, Zhe Feng; Qu, RT; Zhang, ZF (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China.; Zhang, ZF (reprint author), Univ Chinese Acad Sci, 19 A Yuquan Rd, Beijing 100049, Peoples R China.
2017-06-01
Source PublicationMATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
ISSN0921-5093
Volume696Pages:267-272
AbstractThe evolution of shear-band cracking in a typical Zr-based metallic glass under high stress level was explored by interrupted cyclic compression-compression experiments. It was found that the fatigue crack was obviously easier to form along the shear band under cyclic compression than under monotonic loading. Furthermore, the critical shear offset for fatigue crack propagation was obtained, which increases firstly and then decreases, depending on the competition between the accumulation of dilatation damage in the shear band and the release of stress concentration caused by plastic deformation. Moreover, to elucidate the cracking mechanisms, a concept of "fatigue shear-band propagation rate", an analogy with the fatigue crack propagation rate, is proposed and characterized. These results may enhance the understanding on fatigue damage mechanism of MG and offer quantitative guidance on future design for MG and MG matrix composites with excellent fatigue property.; The evolution of shear-band cracking in a typical Zr-based metallic glass under high stress level was explored by interrupted cyclic compression-compression experiments. It was found that the fatigue crack was obviously easier to form along the shear band under cyclic compression than under monotonic loading. Furthermore, the critical shear offset for fatigue crack propagation was obtained, which increases firstly and then decreases, depending on the competition between the accumulation of dilatation damage in the shear band and the release of stress concentration caused by plastic deformation. Moreover, to elucidate the cracking mechanisms, a concept of "fatigue shear-band propagation rate", an analogy with the fatigue crack propagation rate, is proposed and characterized. These results may enhance the understanding on fatigue damage mechanism of MG and offer quantitative guidance on future design for MG and MG matrix composites with excellent fatigue property.
description.department[wang, xiao di ; qu, rui tao ; liu, zeng qian ; zhang, zhe feng] chinese acad sci, inst met res, shenyang natl lab mat sci, 72 wenhua rd, shenyang 110016, liaoning, peoples r china ; [wang, xiao di ; zhang, zhe feng] univ chinese acad sci, 19 a yuquan rd, beijing 100049, peoples r china
KeywordMetallic Glass Shear Band Fatigue Crack Cyclic Compression
Subject AreaNanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
Funding OrganizationNational Natural Science Foundation of China (NSFC) [51331007, 51301174, 51501190]
Indexed BySCI
Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/78094
Collection中国科学院金属研究所
Corresponding AuthorQu, RT; Zhang, ZF (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China.; Zhang, ZF (reprint author), Univ Chinese Acad Sci, 19 A Yuquan Rd, Beijing 100049, Peoples R China.
Recommended Citation
GB/T 7714
Wang, Xiao Di,Qu, Rui Tao,Liu, Zeng Qian,et al. Evolution of shear-band cracking in metallic glass under cyclic compression[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2017,696:267-272.
APA Wang, Xiao Di.,Qu, Rui Tao.,Liu, Zeng Qian.,Zhang, Zhe Feng.,Qu, RT.,...&Zhang, ZF .(2017).Evolution of shear-band cracking in metallic glass under cyclic compression.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,696,267-272.
MLA Wang, Xiao Di,et al."Evolution of shear-band cracking in metallic glass under cyclic compression".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 696(2017):267-272.
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