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Viscous surface flow induced on Ti-based bulk metallic glass by heavy ion irradiation
Zhang K(张坤); Hu Z(胡铮); Li, FJ; Wei BC(魏炳忱); Wei, BC (reprint author), Chinese Acad Sci, Inst Mech, Natl Micrograv Lab, Key Lab Micrograv, Beijing 100190, Peoples R China.
Source PublicationAPPLIED SURFACE SCIENCE
2016-12-30
Volume390Pages:941-945
ISSN0169-4332
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.

KeywordMetallic Glass Ion irradiatIon Viscous Flow
DOI10.1016/j.apsusc.2016.08.083
URL查看原文
Indexed BySCI ; EI
Language英语
WOS IDWOS:000385900700115
WOS KeywordMechanical-stress ; Relaxation ; Instability ; Fe40ni40b20 ; Transition ; Morphology ; Evolution ; Liquids ; Damage ; Creep
WOS Research AreaChemistry ; Materials Science ; Physics
WOS SubjectChemistry, Physical ; Materials Science, Coatings & Films ; Physics, Applied ; Physics, Condensed Matter
Funding OrganizationNational Natural Science Foundation of China(51271193 ; 11332011 ; 51401028)
DepartmentNML空间材料物理力学
Classification一类
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Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/59696
Collection国家微重力实验室
Corresponding AuthorWei, BC (reprint author), Chinese Acad Sci, Inst Mech, Natl Micrograv Lab, Key Lab Micrograv, Beijing 100190, Peoples R China.
Recommended Citation
GB/T 7714
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,2016,390:941-945.
APA Zhang K,Hu Z,Li, FJ,Wei BC,&Wei, BC .(2016).Viscous surface flow induced on Ti-based bulk metallic glass by heavy ion irradiation.APPLIED SURFACE SCIENCE,390,941-945.
MLA Zhang K,et al."Viscous surface flow induced on Ti-based bulk metallic glass by heavy ion irradiation".APPLIED SURFACE SCIENCE 390(2016):941-945.
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