Estimation of the elasto-plastic properties of metallic materials from   micro-hardness measurements

doi:10.1007/s10853-013-7263-3

CORC > 北京大学 > 工学院

	Estimation of the elasto-plastic properties of metallic materials from micro-hardness measurements
	Zhang, Chunyu ; Li, Faxin ; Wang, Biao
刊名	journal of materials science
	2013
关键词	INSTRUMENTED INDENTATION SPHERICAL INDENTATION SHARP INDENTERS EXTRACTIONS
DOI	10.1007/s10853-013-7263-3
英文摘要	Although hardness testing is a cost-effective and reliable technique to quickly estimate the overall mechanical properties of materials, hardness is not a fundamental mechanical parameter and it is rarely used in constitutive modeling or in engineering design. This work proposes a procedure to derive the elasto-plastic properties of metallic materials from the Vickers and the Knoop hardness measurements. Through dimensional analysis and finite-element simulations, relationships between hardness testing variables and mechanical parameters (Young's modulus, yield strength, and strain hardening exponent) are built up. An inverse procedure is developed to derive the mechanical parameters within the framework of genetic algorithm. The method is verified against two bulk steel materials and it is shown the derived stress-strain curves are in good accord with those measured by tensile tests. Then the method is successfully applied to measure the elasto-plastic properties of the pore walls of a metallic foam material. The present method can achieve a performance as good as those based on the instrumented indentation test and it is more readily accessible to the industry considering all the measurements can be performed on a cost-effective micro-hardness tester.; Materials Science, Multidisciplinary; SCI(E); EI; 1; ARTICLE; 12; 4446-4451; 48
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/223291]
专题	工学院
推荐引用方式 GB/T 7714	Zhang, Chunyu,Li, Faxin,Wang, Biao. Estimation of the elasto-plastic properties of metallic materials from micro-hardness measurements[J]. journal of materials science,2013.
APA	Zhang, Chunyu,Li, Faxin,&Wang, Biao.(2013).Estimation of the elasto-plastic properties of metallic materials from micro-hardness measurements.journal of materials science.
MLA	Zhang, Chunyu,et al."Estimation of the elasto-plastic properties of metallic materials from micro-hardness measurements".journal of materials science (2013).