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Effect of structural heterogeneity on serrated flow behavior of Zr-based metallic glass
Liu LH; Liu ZY; Huan Y(郇勇); Wu XY; Lou Y; Huang XS; He LJ; Li PJ; Zhang LC
2018-10-25
发表期刊JOURNAL OF ALLOYS AND COMPOUNDS
卷号766页码:908-917
ISSN0925-8388
摘要Physical correlation between structural heterogeneity and plastic flow of metallic glasses (MGs) is crucial for the understanding of MGs' deformation mechanism. In this work, different degrees of structural heterogeneity are introduced into Zr-based MGs through different cooling rates casting. The effect of structural heterogeneity on serrated flow behavior was studied. The findings demonstrate that there exists a tendency that serration flow dynamics of the MGs transforms from a chaotic state to a self-organized critical state with increased inhomogeneity. The established correlation between structural heterogeneity and serrated flow behavior shows that the higher degree of structural heterogeneity facilitates a higher frequency of interaction and multiplication of shear bands by increasing nucleation sites, and then promotes serrated flow behavior to be more homogeneous in time and space, thereby induces transformation of dynamics behavior and improves the plasticity. The obtained results shed light on deformation mechanism of plastic flow and provide a new insight into the plasticity of MGs. (C) 2018 Elsevier B.V. All rights reserved.
关键词Serrated flow behavior Structural heterogeneity Mechanical property Plastic deformation
DOI10.1016/j.jallcom.2018.07.026
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收录类别SCI ; EI
语种英语
WOS记录号WOS:000444617200108
关键词[WOS]PLASTIC-FLOW ; ION IRRADIATION ; COOLING RATE ; SHEAR BANDS ; VOLUME ; REJUVENATION ; DEFORMATION ; PROPAGATION ; RELAXATION ; DYNAMICS
WOS研究方向Chemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS类目Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
项目资助者National Basic Research Program of China [2013CB632203] ; Natural Science Foundation of China [51601118, 51675347] ; Australian Research Council [DP130103592]
论文分区一类
力学所作者排名3
引用统计
文献类型期刊论文
条目标识符http://dspace.imech.ac.cn/handle/311007/77861
专题非线性力学国家重点实验室
作者单位1.[Liu, L. H.
2.Huang, X. S.
3.Li, P. J.] Tsinghua Univ, Dept Mech Engn, Beijing 100084, Peoples R China
4.[Liu, Z. Y.
5.Wu, X. Y.
6.Lou, Y.] Shenzhen Univ, Coll Mechatron & Control Engn, Guangdong Prov Key Lab Micro Nano Optomechatron E, Shenzhen 518060, Peoples R China
7.[Huan, Y.] Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China
8.[He, L. J.] Tsinghua Univ, Dept Aerosp Engn, Beijing 100084, Peoples R China
9.[Zhang, L. C.] Edith Cowan Univ, Sch Engn, 270 Joondalup Dr, Perth, WA 6027, Australia
推荐引用方式
GB/T 7714
Liu LH,Liu ZY,Huan Y,et al. Effect of structural heterogeneity on serrated flow behavior of Zr-based metallic glass[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2018,766:908-917.
APA Liu LH.,Liu ZY.,Huan Y.,Wu XY.,Lou Y.,...&Zhang LC.(2018).Effect of structural heterogeneity on serrated flow behavior of Zr-based metallic glass.JOURNAL OF ALLOYS AND COMPOUNDS,766,908-917.
MLA Liu LH,et al."Effect of structural heterogeneity on serrated flow behavior of Zr-based metallic glass".JOURNAL OF ALLOYS AND COMPOUNDS 766(2018):908-917.
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