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The Effect of Heat Treatment on the Microstructure and Mechanical Properties of 2D Nanostructured Au/NiFe System

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dc.contributor.author Zubar, Tatiana
dc.contributor.author Fedosyuk, Valery
dc.contributor.author Tishkevich, Daria
dc.contributor.author Kanafyev, Oleg
dc.contributor.author Astapovich, Ksenia
dc.contributor.author Kozlovskiy, Artem
dc.contributor.author Zdorovets, Maxim
dc.contributor.author Vinnik, Denis
dc.contributor.author Gudkova, Svetlana
dc.contributor.author Kaniukov, Egor
dc.contributor.author B. Sombra, Antonio Sergio
dc.contributor.author Zhou, Di
dc.contributor.author Jotania, Rajshree B.
dc.contributor.author Singh, Charanjeet
dc.contributor.author Trukhanov, Sergei
dc.contributor.author Trukhanov, Alex
dc.date.accessioned 2024-09-17T12:35:21Z
dc.date.available 2024-09-17T12:35:21Z
dc.date.issued 2020
dc.identifier.issn 2079-4991
dc.identifier.other doi:10.3390/nano10061077
dc.identifier.uri http://rep.enu.kz/handle/enu/16536
dc.description.abstract Nanostructured NiFe film was obtained on silicon with a thin gold sublayer via pulsed electrodeposition and annealed at a temperature from 100 to 400 ◦C in order to study the effect of heat treatment on the surface microstructure and mechanical properties. High-resolution atomic force microscopy made it possible to trace stepwise evolving microstructure under the influence of heat treatment. It was found that NiFe film grains undergo coalescence twice—at ~100 and ~300 ◦C—in the process of a gradual increase in grain size. The mechanical properties of the Au/NiFe nanostructured system have been investigated by nanoindentation at two various indentation depths, 10 and 50 nm. The results showed the opposite effect of heat treatment on the mechanical properties in the near-surface layer and in the material volume. Surface homogenization in combination with oxidation activation leads to abnormal strengthening and hardening-up of the near-surface layer. At the same time, a nonlinear decrease in hardness and Young’s modulus with increasing temperature of heat treatment characterizes the internal volume of nanostructured NiFe. An explanation of this phenomenon was found in the complex effect of changing the ratio of grain volume/grain boundaries and increasing the concentration of thermally activated diffuse gold atoms from the sublayer to the NiFe film ru
dc.language.iso en ru
dc.publisher Nanomaterials ru
dc.relation.ispartofseries Volume 10;Issue 6
dc.subject pulsed electrodeposition ru
dc.subject multilayer system ru
dc.subject NiFe nanograins ru
dc.subject heat treatment ru
dc.subject surface microstructure ru
dc.subject nanohardness ru
dc.subject Young’s modulus ru
dc.subject elastoplastic deformation ru
dc.title The Effect of Heat Treatment on the Microstructure and Mechanical Properties of 2D Nanostructured Au/NiFe System ru
dc.type Article ru


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