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

doi:10.1063/1.2734394

IMECH-IR > 力学所知识产出(1956-2008)

	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); Li, WH (reprint author), Anhui Univ Technol, Sch Mat Sci & Engn, Maanshan 243002, Peoples R China.
Source Publication	Applied Physics Letters
	2007
Volume	90 Issue:17 Pages:171928
ISSN	0003-6951
Abstract	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.
Keyword	Depth-sensing Indentation Nano-indentation Creep Behavior Load
DOI	10.1063/1.2734394
Indexed By	SCI ; EI
Language	英语
WOS ID	WOS:000246568600053
WOS Keyword	DEPTH-SENSING INDENTATION ; NANO-INDENTATION ; CREEP ; BEHAVIOR ; LOAD
WOS Research Area	Physics
WOS Subject	Physics, Applied
Citation statistics	Cited Times:10[WOS] [WOS Record] [Related Records in WOS]
Document Type	期刊论文
Identifier	http://dspace.imech.ac.cn/handle/311007/33999
Collection	力学所知识产出(1956-2008)
Corresponding Author	Li, WH (reprint author), Anhui Univ Technol, Sch Mat Sci & Engn, Maanshan 243002, Peoples R China.
Recommended Citation 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,&Li, WH .(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.

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