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A comparative study of the rate effect on deformation mode in ductile and brittle bulk metallic glasses
Zhou D; Hou B; Li BJ; Zhang SY; Dai LH(戴兰宏); Li YL
发表期刊INTERMETALLICS
2018-05-01
卷号96页码:94-103
ISSN0966-9795
摘要The rate effect on the deformation mode of bulk metallic glasses (BMGs) is investigated by a comparative study between ductile and brittle compositions via real-time photographing. The strain-rate controls the deformation mode transition from shear-dominated sliding under quasi-static compression to cracking-dominated fracture under dynamic compression. In ductile BMGs, progressive sliding occurs at lower strain rate and contributes to a stable deformation manner. In brittle BMGs, however, unstable deformation occurs through rapid sliding even under quasi-static compression. Both ductile and brittle BMGs undergo unstable deformation under dynamic compression. The rate-dependent and composition-dependent tendency of stable or unstable deformation is well characterized by a model based on the ratio of the applied strain energy to the critical dissipation energy at the local shear banding region.
关键词Metallic Glass Rate Effect Deformation Mode Ductile Brittle
DOI10.1016/j.intermet.2018.01.020
收录类别SCI ; EI
语种英语
WOS记录号WOS:000430891300014
关键词[WOS]MULTIPLE SHEAR BANDS ; STRAIN-RATE ; COMPRESSIVE BEHAVIOR ; SERRATED FLOW ; FRACTURE ; EVOLUTION ; PLASTICITY ; TEMPERATURE ; STABILITY ; CRACKING
WOS研究方向Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目Chemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
项目资助者Innovation Foundation for Doctor Dissertation of Northwestern Polytechnical University (NPU)(CX201707) ; National Science Foundation(11572260 ; 11527803 ; 11790292)
论文分区一类
力学所作者排名5
引用统计
文献类型期刊论文
条目标识符http://dspace.imech.ac.cn/handle/311007/77464
专题非线性力学国家重点实验室
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Zhou D,Hou B,Li BJ,et al. A comparative study of the rate effect on deformation mode in ductile and brittle bulk metallic glasses[J]. INTERMETALLICS,2018,96:94-103.
APA Zhou D,Hou B,Li BJ,Zhang SY,戴兰宏,&Li YL.(2018).A comparative study of the rate effect on deformation mode in ductile and brittle bulk metallic glasses.INTERMETALLICS,96,94-103.
MLA Zhou D,et al."A comparative study of the rate effect on deformation mode in ductile and brittle bulk metallic glasses".INTERMETALLICS 96(2018):94-103.
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