IMECH-IR  > 非线性力学国家重点实验室
Testing effects on hardness of a Zr-based metallic glass under nanoindentation
Li, M. C.; Jiang MQ(蒋敏强); Jiang, F.; He, L.; Sun, J.; Jiang, F (reprint author), Xi An Jiao Tong Univ, State Key Lab Mech Behav Mat, Xian 710049, Shaanxi, Peoples R China.
Source PublicationSCRIPTA MATERIALIA
2017-09-01
Volume138Pages:120-123
ISSN1359-6462
AbstractA series of nanoindentation tests were performed on a Zr-based bulk metallic glass at different peak-loads and strain rates. It is observed that the strain rate sensitivity index gradually decreases from positive to almost zero with increasing peak-load. Furthermore, at a fixed strain rate, the indentation hardness firstly shows a dramatic reduction and then becomes stable with increasing peak-load. These observations can be well understood in the framework of the activation and the accumulation of free volume via shear transformation zones. The current work may provide a practical way to tailor the hardness of the metallic glass. (C) 2017 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
KeywordMetallic Glass Nanoindentation Strain Rate Indentation Size Effect
DOI10.1016/j.scriptamat.2017.05.046
URL查看原文
Indexed BySCI ; EI
Language英语
WOS IDWOS:000406567700027
WOS KeywordSHEAR TRANSFORMATION ZONE ; PLASTIC-FLOW ; STRESS OVERSHOOT ; LOADING RATE ; STRAIN-RATE ; STRENGTH ; DEFORMATION ; SIZE
WOS Research AreaScience & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectNanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
Funding OrganizationNational Natural Science Foundation of China (NSFC)(51171138 ; foundation of National Ministry and Commission(613262) ; 11522221 ; 11372315 ; 51321003)
DepartmentLNM冲击动力学与新型材料力学性能
Classification一类
Ranking2
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Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/70025
Collection非线性力学国家重点实验室
Corresponding AuthorJiang, F (reprint author), Xi An Jiao Tong Univ, State Key Lab Mech Behav Mat, Xian 710049, Shaanxi, Peoples R China.
Recommended Citation
GB/T 7714
Li, M. C.,Jiang MQ,Jiang, F.,et al. Testing effects on hardness of a Zr-based metallic glass under nanoindentation[J]. SCRIPTA MATERIALIA,2017,138:120-123.
APA Li, M. C.,蒋敏强,Jiang, F.,He, L.,Sun, J.,&Jiang, F .(2017).Testing effects on hardness of a Zr-based metallic glass under nanoindentation.SCRIPTA MATERIALIA,138,120-123.
MLA Li, M. C.,et al."Testing effects on hardness of a Zr-based metallic glass under nanoindentation".SCRIPTA MATERIALIA 138(2017):120-123.
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