Transactions of Nonferrous Metals Society of China The Chinese Journal of Nonferrous Metals

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中国有色金属学报(英文版)

Transactions of Nonferrous Metals Society of China

Vol. 20    No. 12    December 2010

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Elastic-plastic properties of thin film on elastic-plastic substrates
characterized by nanoindentation test
JIANG Li-mei(蒋丽梅)1, 2, ZHOU Yi-chun(周益春)2, HUANG Yong-li(黄勇力)2

1. College of Packaging and Material Engineering, Hunan University of Technology, Zhuzhou 412007, China;
2. Key Laboratory of Low Dimensional Materials and Application Technology of Ministry of Education,
Xiangtan University, Xiangtan 411105, China

Abstract: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.

 

Key words: elastic-plastic thin film; nanoindentation test; dimensionless analysis; finite element analysis

ISSN 1004-0609
CN 43-1238/TG
CODEN: ZYJXFK

ISSN 1003-6326
CN 43-1239/TG
CODEN: TNMCEW

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