Paper Title:
Strain and Stress Distribution in Vickers Indentation of Coated Materials
  Abstract

Depth sensing indentation equipment allows the mechanical properties of thin films to be easily determined, particularly the hardness and Young’s modulus. In order to minimize the influence of the substrate on the measured properties, the indentation depth must be limited to a small fraction of the film’s thickness. However, for very thin films, the determination of the contribution of the substrate and the film to the measured mechanical properties becomes a hard task, because both deform plastically. The numerical simulation of ultramicrohardness tests can be a helpful tool towards better understanding of the influence of the parameters involved in the mechanical characterization of thin films. For this purpose, a three-dimensional numerical simulation home code, HAFILM, was used to simulate ultramicrohardness tests on coated substrates. Materials with different Young’s modulus film/substrate ratios were tested. Analyses of strain and stress distributions for several indentation depth values were performed, in order to clarify the composite behaviour.

  Info
Periodical
Materials Science Forum (Volumes 514-516)
Edited by
Paula Maria Vilarinho
Pages
1472-1476
DOI
10.4028/www.scientific.net/MSF.514-516.1472
Citation
J. M. Antunes, N. A. Sakharova, J. V. Fernandes, L. F. Menezes, "Strain and Stress Distribution in Vickers Indentation of Coated Materials", Materials Science Forum, Vols. 514-516, pp. 1472-1476, 2006
Online since
May 2006
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Jong Woong Kim, Sun Kyu Park, Seung Boo Jung
Abstract:Ball shear test was investigated in terms of effects of important test parameters, i.e. shear height and shear speed, with an experimental...
851
Authors: Xiao Ning Zhang, Qing Wang
Abstract:This paper presents a simulation method on shielding effectiveness(SE). The method is completely general and able to optimize shielding...
1613
Authors: Chang Long Liu, Da Pei Tang
Abstract:Thermal residual stress in diamond film deposited onto Mo substrate was simulated and analyzed comprehensively by using the finite element...
1199
Authors: Mohsen Loh-Mousavi, Amir Masoud Mirhosseini, Ghasem Amirian
Abstract:In recent years, tube hydroforming has been applied in automobile and airplane industries, to decrease weight. In general, the determination...
5
Authors: Jong Hoon Yoon, Ho Sung Lee, Yeng Moo Yi, Joon Tae Yoo
IV. Design, Testing and Modelling
Abstract:In the current study, the finite element simulation for superplastic blow forming of a toroidal Ti-6Al-4V fuel tank is discussed. 3 types of...
240