Nonuniformity Effect of Surface-Nanocrystalline Materials in Nanoindentation Test

CORC > 力学研究所 > 中国科学院力学研究所 > 力学所知识产出(1956-2008)

	Nonuniformity Effect of Surface-Nanocrystalline Materials in Nanoindentation Test
	Wei YG(魏悦广); Chen XL(陈小亮); Shu SQ(舒思齐)
刊名	International Journal for Multiscale Computational Engineering
	2006
通讯作者邮箱	ywei@LNM.imech.ac.cn
卷号	4 期号:1 页码:183-196
ISSN号	1543-1649
通讯作者	Wei, YG (reprint author), Chinese Acad Sci, Inst Mech, LNM, Beijing 100080, Peoples R China.
中文摘要	In the present research, microstructures of the surface-nanocrystalline Al alloy material are observed and measured based on the transmission electron microscopy (TEM) technique, and the corresponding mechanical behaviors are investigated experimentally and theoretically. In the experimental research, the nanoindentation test method is used, and the load and microhardness curves are measured, which strongly depend on the grain size and grain size nonuniformity. Two kinds of the nanoindentation test methods are adopted: the randomly selected loading point method and the continuous stiffness method. In the theoretical modeling, based on the microstructure characteristics of the surface-nanocrystalline Al alloy material, a dislocation pile-up model considering the grain size effect and based on the Mott theory is presented and used. The hardness-indent depth curves are predicted and modeled.
学科主题	力学
类目[WOS]	Engineering, Multidisciplinary ; Mathematics, Interdisciplinary Applications
研究领域[WOS]	Engineering ; Mathematics
关键词[WOS]	STRAIN GRADIENT PLASTICITY ; SIZE-DEPENDENT HARDNESS ; MICRO-INDENTATION TEST ; DEFORMATION ; MECHANICS ; SOLIDS ; ALLOY ; AL ; MICROSTRUCTURE ; NICKEL
收录类别	SCI
原文出处	http://dx.doi.org/10.1615/IntJMultCompEng.v4.i1.120
语种	英语
WOS记录号	WOS:000238918900012
公开日期	2007-06-15 ; 2007-12-05 ; 2009-06-23
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/17041]
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	Wei YG,Chen XL,Shu SQ. Nonuniformity Effect of Surface-Nanocrystalline Materials in Nanoindentation Test[J]. International Journal for Multiscale Computational Engineering,2006,4(1):183-196.
APA	Wei YG,Chen XL,&Shu SQ.(2006).Nonuniformity Effect of Surface-Nanocrystalline Materials in Nanoindentation Test.International Journal for Multiscale Computational Engineering,4(1),183-196.
MLA	Wei YG,et al."Nonuniformity Effect of Surface-Nanocrystalline Materials in Nanoindentation Test".International Journal for Multiscale Computational Engineering 4.1(2006):183-196.