Mechanisms of deformation and fracture of thin coatings on different substrates in instrumented indentation G. M. Eremina, A. Yu. Smolin, S. G. Psakhie
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ArticleContent type: Текст Media type: электронный Subject(s): наноструктурированные покрытия | метод подвижных клеточных автоматов | разрушение | инструментальное индентированиеGenre/Form: статьи в журналах Online resources: Click here to access online
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Russian physics journal Vol. 60, № 12. P. 2169-2176Abstract: 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.
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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.
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