| 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.
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| Source Publication | JOURNAL OF ALLOYS AND COMPOUNDS |
| 2018-10-01 | |
| Pages | 908-917 |
| Conference Name | 24th International Symposium on Metastable, Amorphous and Nanostructured Materials (ISMANAM) |
| Conference Date | JUN 18-23, 2017 |
| Conference Place | San Sebastian, SPAIN |
| Abstract | 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. |
| Keyword | Serrated flow behavior Structural heterogeneity Mechanical property Plastic deformation |
| WOS ID | WOS:000444617200108 |
| Funding Organization | National Basic Research Program of China [2013CB632203]; Natural Science Foundation of China [51601118, 51675347]; Australian Research Council [DP130103592] |
| Indexed By | CPCI-S |
| Language | 英语 |
| Citation statistics | |
| Document Type | 会议论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/78555 |
| Collection | 非线性力学国家重点实验室 |
| Affiliation | 1.{Liu, L. H.、Huang, X. S.、Li, P. J.} Tsinghua Univ, Dept Mech Engn, Beijing 100084, Peoples R China 2.{Liu, Z. Y.、Wu, X. Y.、Lou, Y.} Shenzhen Univ, Coll Mechatron & Control Engn, Guangdong Prov Key Lab Micro Nano Optomechatron E, Shenzhen 518060, Peoples R China 3.{Huan, Y.} Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China 4.{He, L. J.} Tsinghua Univ, Dept Aerosp Engn, Beijing 100084, Peoples R China 5.{Zhang, L. C.} Edith Cowan Univ, Sch Engn, 270 Joondalup Dr, Perth, WA 6027, Australia |
| Recommended Citation GB/T 7714 | Liu LH.,Liu ZY.,Huan Y,et al. Effect of structural heterogeneity on serrated flow behavior of Zr-based metallic glass[C]JOURNAL OF ALLOYS AND COMPOUNDS,2018:908-917. |
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| File Name/Size | DocType | Version | Access | License | ||
| IrCp2018022.pdf（1271KB） | 会议论文 | 开放获取 | CC BY-NC-SA | View Download | ||
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