DEFORMATION OF FE3SI SINGLE-CRYSTALS UNDER NANOINDENTATION

Jaroslav Čech, Petr Haušild, Aleš Materna

Abstract


Knowledge of the complex deformation behavior in the anisotropic materials is one of essential issues in materials science and it is crucial for the applications of a given material. In this study, mechanical response of Fe3(wt.%)Si single crystal to nanoindentation with spherical indenter was investigated. Hardness and indentation Young´s modulus were determined experimentally and by finite element modelling. Observed pop-in phenomenon, shape of the residual imprints and origin of the slip lines were explained on the basis of resolved shear stress computed by finite element model.

Keywords


nanoindentation, bcc, slip activation, mechanical properties, finite element model

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This work is licensed under a Creative Commons Attribution 4.0 International License.

ISSN 2336-5382 (Online)
Published by the Czech Technical University in Prague