Mechanisms of Deformation and Fracture of Thin Coatings on Different Substrates in Instrumented Indentation

G. M. Eremina, A. Y. Smolin, S. G. Psakhie

Division for Materials Science

Research output: Contribution to journal › Article

Abstract

Mechanical properties of thin surface layers and coatings are commonly studied using instrumented indentation and scratch testing, where the mechanical response of the coating – substrate system essentially depends on the substrate material. It is quite difficult to distinguish this dependence and take it into account in the course of full-scale experiments due to a multivariative and nonlinear character of the influence. In this study the process of instrumented indentation of a hardening coating formed on different substrates is investigated numerically by the method of movable cellular automata. As a result of modeling, we identified the features of the substrate material influence on the derived mechanical characteristics of the coating – substrate systems and the processes of their deformation and fracture.

Original language	English
Pages (from-to)	1-8
Number of pages	8
Journal	Russian Physics Journal
Volume	60
Issue number	12
DOIs	https://doi.org/10.1007/s11182-018-1342-5
Publication status	Published - 2018

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Keywords

fracture
indentation
movable cellular automaton method
nanostructured coatings
simulation

ASJC Scopus subject areas

Physics and Astronomy(all)

Cite this

Eremina, G. M., Smolin, A. Y., & Psakhie, S. G. (2018). Mechanisms of Deformation and Fracture of Thin Coatings on Different Substrates in Instrumented Indentation. Russian Physics Journal, 60(12), 1-8. https://doi.org/10.1007/s11182-018-1342-5

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10.1007/s11182-018-1342-5