Investigation of the relationship between elastic modulus and hardness based on depth-sensing indentation measurements

IMR OpenIR

	Investigation of the relationship between elastic modulus and hardness based on depth-sensing indentation measurements
	Y. W. Bao; W. Wang; Y. C. Zhou
	2004
发表期刊	Acta Materialia
ISSN	1359-6454
卷号	52 期号:18 页码:5397-5404
摘要	An analytical relationship between the reduced modulus E-r and hardness H for solid materials is established based on the conventional depth-sensing indentation method of Oliver and Pharr. It is found that the two properties are related through a material parameter that is defined as the recovery resistance R-s. This parameter is shown to represent the energy dissipation during indentation. Based on indentation measurements with the use of a Berkovich indenter, the relationship is given as E-r = 0.6647 rootHR(s). Also presented is a simple set of procedures to determine the area of indent. The procedures require three measured quantities, i.e., the peak load and corresponding displacements as well as the depth of residual indentation, but do not require complicated curve fitting process and regression analysis which themselves involve the specimen material. Nano-indentation tests were conducted using a Berkovich indenter on five materials spanning a wide range of hardness and plasticity. Experimental results revealed two important features: (a) the reduced modulus predicted by the new Er-H relationship is the same as that obtained by the conventional method; (b) the elastic modulus and hardness values determined by the simple set of procedures are comparable to those obtained by using the conventional method. (C) 2004 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
部门归属	chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china.;bao, yw (reprint author), chinese acad sci, inst met res, shenyang natl lab mat sci, 72 wenhua rd, shenyang 110016, peoples r china;ywbao@imr.ac.cn
关键词	Nano-indentation E-r-h Relationship Recovery Resistance Energy Dissipation Nanoindentation Data Brittle Materials Alumina
URL	查看原文
WOS记录号	WOS:000224536400016
引用统计	被引频次：306[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/35308
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	Y. W. Bao,W. Wang,Y. C. Zhou. Investigation of the relationship between elastic modulus and hardness based on depth-sensing indentation measurements[J]. Acta Materialia,2004,52(18):5397-5404.
APA	Y. W. Bao,W. Wang,&Y. C. Zhou.(2004).Investigation of the relationship between elastic modulus and hardness based on depth-sensing indentation measurements.Acta Materialia,52(18),5397-5404.
MLA	Y. W. Bao,et al."Investigation of the relationship between elastic modulus and hardness based on depth-sensing indentation measurements".Acta Materialia 52.18(2004):5397-5404.