Effect of Crystallographic Orientation on Hardness and Indentation Modulus in Austenitic Stainless Steel

Petr Haušild; Aleš Materna; Jiri Nohava

doi:10.4028/www.scientific.net/KEM.586.31

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HomeKey Engineering MaterialsKey Engineering Materials Vol. 586Effect of Crystallographic Orientation on Hardness...

Effect of Crystallographic Orientation on Hardness and Indentation Modulus in Austenitic Stainless Steel

Abstract:

The most commonly used method for the analysis of instrumented indentation test (Oliver-Pharr) is based on isotropic elastic solution of contact problem which is not necessarily valid when indenting at the scale of one (anisotropic) grain. In this paper, we performed the grid indentation method at the sub-micron scale (at low indentation load and depth of penetration) on an area containing several grains with different crystallographic orientation which was simultaneously characterized by electron back-scattered diffraction. Measured dependencies of hardness and indentation modulus on crystallographic orientation were compared with analytical solution and finite element simulations.

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Periodical:

Key Engineering Materials (Volume 586)

Pages:

31-34

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.586.31

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Online since:

September 2013

Authors:

Petr Haušild, Aleš Materna, Jiri Nohava

Keywords:

Anisotropy, Austenitic Stainless Steel, Elastic Contact, Nanoindentation

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