| Surface rippling on bulk metallic glass under nanosecond pulse laser ablation | |
Liu Y ; Jiang MQ(蒋敏强); Yang GW; Guan YJ(关永军); Dai LH(戴兰宏); Dai, LH (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China
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| Source Publication | Applied Physics Letter
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| 2011 | |
| Volume | 99Issue:19Pages:191902 |
| ISSN | 0003-6951 |
| Abstract | We report an interesting surface ripple patterns in the irradiated area of a Zr-based bulk metallic glass by nanosecond pulse laser with single shot. Such surface rippling phenomenon can be ascribed to the Kelvin-Helmholtz instability at the interface between the molten layer and the expanding plasma plume. The analytical instability criterion is obtained via a perturbation analysis. Furthermore, the model demonstrates that the characteristic spacing of the ripples is dominated by the density, transverse velocity of the plasma wind, and the surface tension of the molten layer. The predicted spacing agrees well with the experimentally observed values. The results are fundamentally useful for laser-processing bulk metallic glasses (BMGs) and even for understanding the nature of flow in BMGs. (C) 2011 American Institute of Physics. [doi: 10.1063/1.3656700] |
| Keyword | Mechanical-behavior Instability Fracture Alloy |
| Subject Area | Physics |
| DOI | 10.1063/1.3656700 |
| URL | 查看原文 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000297030200017 |
| WOS Keyword | MECHANICAL-BEHAVIOR ; INSTABILITY ; FRACTURE ; ALLOY |
| WOS Research Area | Physics |
| WOS Subject | Physics, Applied |
| Funding Organization | Financial support is from the NSFC (Grants Nos. 10725211, 11002144, 11021262, and 10902113), the National Natural Science Foundation of China-NSAF (Grant No. 10976100), and the National Key Basic Research Program of China (Grant No. 2009CB724401). |
| Department | LNM冲击动力学与新型材料力学性能 |
| Classification | 一类 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/44960 |
| Collection | 非线性力学国家重点实验室 |
| Corresponding Author | Dai, LH (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China |
| Recommended Citation GB/T 7714 | Liu Y,Jiang MQ,Yang GW,et al. Surface rippling on bulk metallic glass under nanosecond pulse laser ablation[J]. Applied Physics Letter,2011,99,19,:191902. |
| APA | Liu Y,蒋敏强,Yang GW,关永军,戴兰宏,&Dai, LH .(2011).Surface rippling on bulk metallic glass under nanosecond pulse laser ablation.Applied Physics Letter,99(19),191902. |
| MLA | Liu Y,et al."Surface rippling on bulk metallic glass under nanosecond pulse laser ablation".Applied Physics Letter 99.19(2011):191902. |
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