Simple phenomenological determination of contact stiffness and elastic modulus of Ce-based bulk metallic glasses through nanoindentation

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	Simple phenomenological determination of contact stiffness and elastic modulus of Ce-based bulk metallic glasses through nanoindentation
	Li WH(李维火); Shin K; Lee CG; Wei BC(魏炳忱); Zhang TH(张泰华)
刊名	Applied Physics Letters
	2007
通讯作者邮箱	whli@imech.ac.cn
卷号	90 期号:17 页码:171928
关键词	Depth-Sensing Indentation Nano-Indentation Creep Behavior Load
ISSN号	0003-6951
通讯作者	Li, WH (reprint author), Anhui Univ Technol, Sch Mat Sci & Engn, Maanshan 243002, Peoples R China.
中文摘要	The viscoelastic deformation of Ce-based bulk metallic glasses (BMGs) with low glass transition temperature is investigated at room temperature. Contact stiffness and elastic modulus of Ce-based BMGs cannot be derived using the conventional Oliver-Pharr method [W. C. Oliver and G. M. Pharr, J. Mater. Res. 7, 1564 (1992)]. The present work shows that the time dependent displacement of unloading segments can be described well by a generalized Kelvin model. Thus, a modified Oliver-Pharr method is proposed to evaluate the contact stiffness and elastic modulus, which does, in fact, reproduce the values obtained via uniaxial compression tests. (c) 2007 American Institute of Physics.
类目[WOS]	Physics, Applied
研究领域[WOS]	Physics
关键词[WOS]	DEPTH-SENSING INDENTATION ; NANO-INDENTATION ; CREEP ; BEHAVIOR ; LOAD
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000246568600053
公开日期	2009-08-03 ; 2010-06-13
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/33999]
专题	力学研究所_力学所知识产出(1956-2008)
推荐引用方式 GB/T 7714	Li WH,Shin K,Lee CG,et al. Simple phenomenological determination of contact stiffness and elastic modulus of Ce-based bulk metallic glasses through nanoindentation[J]. Applied Physics Letters,2007,90(17):171928.
APA	李维火,Shin K,Lee CG,魏炳忱,&张泰华.(2007).Simple phenomenological determination of contact stiffness and elastic modulus of Ce-based bulk metallic glasses through nanoindentation.Applied Physics Letters,90(17),171928.
MLA	李维火,et al."Simple phenomenological determination of contact stiffness and elastic modulus of Ce-based bulk metallic glasses through nanoindentation".Applied Physics Letters 90.17(2007):171928.