Nanostructured NiFe film was obtained on silicon with a thin gold
sublayer via pulsed electrodeposition and annealed at a temperature from
100 to 400 degrees 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 similar to 100 and similar
to 300 degrees 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.
%0 Journal Article
%1 WOS:000551001300001
%A Zubar, Tatiana
%A Fedosyuk, Valery
%A Tishkevich, Daria
%A Kanafyev, Oleg
%A Astapovich, Ksenia
%A Kozlovskiy, Artem
%A Zdorovets, Maxim
%A Vinnik, Denis
%A Gudkova, Svetlana
%A Kaniukov, Egor
%A Sombra, Antonio Sergio B
%A Zhou, Di
%A Jotania, Rajshree B
%A Singh, Charanjeet
%A Trukhanov, Sergei
%A Trukhanov, Alex
%C ST ALBAN-ANLAGE 66, CH-4052 BASEL, SWITZERLAND
%D 2020
%I MDPI
%J NANOMATERIALS
%K NiFe Young's deformation} elastoplastic electrodeposition; heat microstructure; modulus; multilayer nanograins; nanohardness; surface system; treatment; {pulsed
%N 6
%R 10.3390/nano10061077
%T The Effect of Heat Treatment on the Microstructure and Mechanical
Properties of 2D Nanostructured Au/NiFe System
%V 10
%X Nanostructured NiFe film was obtained on silicon with a thin gold
sublayer via pulsed electrodeposition and annealed at a temperature from
100 to 400 degrees 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 similar to 100 and similar
to 300 degrees 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.
@article{WOS:000551001300001,
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 degrees 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 similar to 100 and similar
to 300 degrees 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.},
added-at = {2022-05-23T20:00:14.000+0200},
address = {ST ALBAN-ANLAGE 66, CH-4052 BASEL, SWITZERLAND},
author = {Zubar, Tatiana and Fedosyuk, Valery and Tishkevich, Daria and Kanafyev, Oleg and Astapovich, Ksenia and Kozlovskiy, Artem and Zdorovets, Maxim and Vinnik, Denis and Gudkova, Svetlana and Kaniukov, Egor and Sombra, Antonio Sergio B and Zhou, Di and Jotania, Rajshree B and Singh, Charanjeet and Trukhanov, Sergei and Trukhanov, Alex},
biburl = {https://www.bibsonomy.org/bibtex/207dfe0472ba9322a4cba927dadc89145/ppgfis_ufc_br},
doi = {10.3390/nano10061077},
interhash = {4da9c7f11df006713e12594d0344b03d},
intrahash = {07dfe0472ba9322a4cba927dadc89145},
journal = {NANOMATERIALS},
keywords = {NiFe Young's deformation} elastoplastic electrodeposition; heat microstructure; modulus; multilayer nanograins; nanohardness; surface system; treatment; {pulsed},
number = 6,
publisher = {MDPI},
pubstate = {published},
timestamp = {2022-05-23T20:00:14.000+0200},
title = {The Effect of Heat Treatment on the Microstructure and Mechanical
Properties of 2D Nanostructured Au/NiFe System},
tppubtype = {article},
volume = 10,
year = 2020
}