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Title:
Viscous surface flow induced on Ti-based bulk metallic glass by heavy ion irradiation
Author: Zhang K(张坤); Hu Z(胡铮); Li, FJ; Wei BC(魏炳忱)
Source: APPLIED SURFACE SCIENCE
Issued Date: 2016-12-30
Volume: 390, Pages:941-945
Abstract:

Ti-based bulk metallic glass was irradiated by a 20 MeV Cl4+ ion beam under liquid-nitrogen cooling, which produced remarkable surface smoothing and roughening that respectively correspond to normal and off-normal incidence angles of irradiation. Atomic force microscopy confirms two types of periodic ripples distributed evenly over the rough glass surface. In terms of mechanism, irradiation-induced viscosity agrees with the theoretical prediction for metallic glasses near glass transition temperature. Here, a model is introduced, based on relaxation of confined viscous flow with a thin liquid-like layer, that explains both surface smoothing and ripple formation. This study demonstrates that bulk metallic glass has high morphological instability and low viscosity under ion irradiation, which assets can pave new paths for metallic glass applications. (C) 2016 Published by Elsevier B.V.

Keyword: Metallic glass ; Ion irradiation ; Viscous flow
Language: 英语
Indexed Type: SCI ; EI
Corresponding Author: Wei, BC (reprint author), Chinese Acad Sci, Inst Mech, Natl Micrograv Lab, Key Lab Micrograv, Beijing 100190, Peoples R China.
Correspondent Email: weibc@imech.ac.cn
DOI: 10.1016/j.apsusc.2016.08.083
Related URLs: 查看原文
DOC Type: Article
WOS Subject: Chemistry, Physical ; Materials Science, Coatings & Films ; Physics, Applied ; Physics, Condensed Matter
WOS Subject Extended: Chemistry ; Materials Science ; Physics
WOS Keyword Plus: MECHANICAL-STRESS ; RELAXATION ; INSTABILITY ; FE40NI40B20 ; TRANSITION ; MORPHOLOGY ; EVOLUTION ; LIQUIDS ; DAMAGE ; CREEP
WOS ID: WOS:000385900700115
ISSN: 0169-4332
Funder: National Natural Science Foundation of China(51271193 ; 11332011 ; 51401028)
Rank: [Zhang, Kim; Hu, Zheng; Li, Fengjiang; Wei, Bingchen] Chinese Acad Sci, Inst Mech, Natl Micrograv Lab, Key Lab Micrograv, Beijing 100190, Peoples R China; [Hu, Zheng] China North Vehicle Res Inst, Sci & Technol Vehicle Transmiss Lab, Beijing 100072, Peoples R China
Department: NML空间材料物理力学
Classification: 一类
Ranking: True
Citation statistics:
Content Type: 期刊论文
URI: http://dspace.imech.ac.cn/handle/311007/59696
Appears in Collections:国家微重力实验室_期刊论文

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Recommended Citation:
Zhang K,Hu Z,Li, FJ,et al. Viscous surface flow induced on Ti-based bulk metallic glass by heavy ion irradiation[J]. APPLIED SURFACE SCIENCE,2016-12-30,390:941-945.
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