Elastic-plastic properties of thin film on elastic-plastic substrates characterized by nanoindentation test  

作　　者：蒋丽梅 周益春 黄勇力 

机构地区：[1]College of Packaging and Material Engineering,Hunan University of Technology [2]Key Laboratory of Low Dimensional Materials and Application Technology of Ministry of Education,Xiangtan University

出　　处：《Transactions of Nonferrous Metals Society of China》2010年第12期2345-2349,共5页中国有色金属学报（英文版）

基　　金：Projects(50531060,10525211,10828205)supported by the National Natural Science Foundation of China;Project(10525211)supported by National Science Found for Distinguished Young Scholars of China;Project(076044)supported by the Cultivation Fund of the Key Scientific and Technical Innovation Project,Ministry of Education of China

摘　　要：To characterize the elastic-plastic properties of thin film materials on elastic-plastic substrates,a simple theory model was proposed,which included three steps:dimensionless analysis,finite element modeling and data fitting.The dimensionless analysis was applied to deriving two preliminary nondimensional relationships of the material properties,and finite element modeling and data fitting were carried out to establish their explicit forms.Numerical indentation tests were carried out to examine the effectiveness of the proposed model and the good agreement shows that the proposed theory model can be applied in practice.To characterize the elastic-plastic properties of thin film materials on elastic-plastic substrates,a simple theory model was proposed,which included three steps：dimensionless analysis,finite element modeling and data fitting.The dimensionless analysis was applied to deriving two preliminary nondimensional relationships of the material properties,and finite element modeling and data fitting were carried out to establish their explicit forms.Numerical indentation tests were carried out to examine the effectiveness of the proposed model and the good agreement shows that the proposed theory model can be applied in practice.

关 键 词：elastic-plastic thin film nanoindentation test dimensionless analysis finite element analysis 

分 类 号：TB302.3[一般工业技术—材料科学与工程]