Testing effects on hardness of a Zr-based metallic glass under nanoindentation

doi:10.1016/j.scriptamat.2017.05.046

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	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.
发表期刊	SCRIPTA MATERIALIA
	2017-09-01
卷号	138 页码:120-123
ISSN	1359-6462
摘要	A 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.
关键词	Metallic Glass Nanoindentation Strain Rate Indentation Size Effect
DOI	10.1016/j.scriptamat.2017.05.046
URL	查看原文
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000406567700027
关键词[WOS]	SHEAR TRANSFORMATION ZONE ; PLASTIC-FLOW ; STRESS OVERSHOOT ; LOADING RATE ; STRAIN-RATE ; STRENGTH ; DEFORMATION ; SIZE
WOS研究方向	Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
项目资助者	National Natural Science Foundation of China (NSFC)(51171138 ; foundation of National Ministry and Commission(613262) ; 11522221 ; 11372315 ; 51321003)
课题组名称	LNM冲击动力学与新型材料力学性能
论文分区	一类
力学所作者排名	2
引用统计	被引频次：29[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/70025
专题	非线性力学国家重点实验室
通讯作者	Jiang, F (reprint author), Xi An Jiao Tong Univ, State Key Lab Mech Behav Mat, Xian 710049, Shaanxi, Peoples R China.
推荐引用方式 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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