An Improved Energy Method For Determining Young'S Modulus By Instrumented Indentation Using A Berkovich Tip

doi:10.1557/JMR.2008.0257

IMECH-IR > 力学所知识产出(1956-2008)

	An Improved Energy Method For Determining Young'S Modulus By Instrumented Indentation Using A Berkovich Tip
	Ma DJ; Ong CW; Zhang TH(张泰华); Ong, CW (reprint author), Hong Kong Polytech Univ, Dept Appl Phys, Kowloon, Hong Kong, Peoples R China.
发表期刊	Journal of Materials Research
	2008
页码	2106-2115
ISSN	0884-2914
摘要	We previously proposed a method for estimating Young's modulus from instrumented nanoindentation data based on a model assuming that the indenter had a spherical-capped Berkovich geometry to take account of the bluntness effect. The method is now further improved by releasing the constraint on the tip shape, allowing it to have a much broader arbitrariness to range from a conical-tipped shape to a flat-ended shape, whereas the spherical-capped shape is just a special case in between. This method requires two parameters to specify a tip geometry, namely, a volume bluntness ratio V-r and a height bluntness ratio h(r). A set of functional relationships correlating nominal hardness/reduced elastic modulus ratio (H-n/E-r) and elastic work/total work ratio (W-e/W) were established based on dimensional analysis and finite element simulations, with each relationship specified by a set of V-r and h(r). Young's modulus of an indented material can be estimated from these relationships. The method was shown to be valid when applied to S45C carbon steel and 6061 aluminum alloy.
关键词	Depth-sensing Indentation Elastic-modulus Sharp Indentation Elastoplastic Properties Anisotropic Materials Hardness Load Indenter
DOI	10.1557/JMR.2008.0257
收录类别	SCI
语种	英语
WOS记录号	WOS:000258240900010
关键词[WOS]	DEPTH-SENSING INDENTATION ; ELASTIC-MODULUS ; SHARP INDENTATION ; ELASTOPLASTIC PROPERTIES ; ANISOTROPIC MATERIALS ; HARDNESS ; LOAD ; INDENTER
WOS研究方向	Materials Science
WOS类目	Materials Science, Multidisciplinary
引用统计	被引频次：11[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/311007/25938
专题	力学所知识产出(1956-2008)
通讯作者	Ong, CW (reprint author), Hong Kong Polytech Univ, Dept Appl Phys, Kowloon, Hong Kong, Peoples R China.
推荐引用方式 GB/T 7714	Ma DJ,Ong CW,Zhang TH,et al. An Improved Energy Method For Determining Young'S Modulus By Instrumented Indentation Using A Berkovich Tip[J]. Journal of Materials Research,2008:2106-2115.
APA	Ma DJ,Ong CW,张泰华,&Ong, CW .(2008).An Improved Energy Method For Determining Young'S Modulus By Instrumented Indentation Using A Berkovich Tip.Journal of Materials Research,2106-2115.
MLA	Ma DJ,et al."An Improved Energy Method For Determining Young'S Modulus By Instrumented Indentation Using A Berkovich Tip".Journal of Materials Research (2008):2106-2115.

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