Free volume measurement of severely deformed Zr62Cu22Al10Fe5Dy1 bulk metallic glass

D. V. Gunderov, E. V. Boltynjuk, V. D. Sitdikov, G. E. Abrosimova, A. A. Churakova, A. R. Kilmametov, R. Z. Valiev

Research output

Abstract

The Zr62Cu22Al10Fe5Dy1 bulk metallic glass (BMG) was subjected to high pressure torsion (HPT) at room temperature and at 150 °C. XRD shows a shift of first amorphous halo towards a low angles, which corresponds to an increase in the first coordination sphere radius and an increase in free volume content approximately by 0.44 % and 0.74 % after HPT processing at temperatures of 20 and 150 °C, respectively. Direct density measurements revealed that HPT at 20 °C and 150 °C leads to a decrease in the density values by 2.1% and 1 %, respectively, in comparison with the initial state. Value of density decrease for state HPT 150 °C estimated by direct density measurements is close to value of free volume increase estimated by shift of first amorphous halo.

Original languageEnglish
Article number012010
JournalJournal of Physics: Conference Series
Volume1134
Issue number1
DOIs
Publication statusPublished - 5 Dec 2018
Event7th International Conference on Functional Nanomaterials and High Purity Substances, FNM 2018 - Suzdal
Duration: 1 Oct 20185 Oct 2018

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metallic glasses
torsion
halos
shift
radii
room temperature
temperature

Scopus subject areas

  • Physics and Astronomy(all)

Cite this

@article{3e89c3886d5142b282e30ef4015e5419,
title = "Free volume measurement of severely deformed Zr62Cu22Al10Fe5Dy1 bulk metallic glass",
abstract = "The Zr62Cu22Al10Fe5Dy1 bulk metallic glass (BMG) was subjected to high pressure torsion (HPT) at room temperature and at 150 °C. XRD shows a shift of first amorphous halo towards a low angles, which corresponds to an increase in the first coordination sphere radius and an increase in free volume content approximately by 0.44 {\%} and 0.74 {\%} after HPT processing at temperatures of 20 and 150 °C, respectively. Direct density measurements revealed that HPT at 20 °C and 150 °C leads to a decrease in the density values by 2.1{\%} and 1 {\%}, respectively, in comparison with the initial state. Value of density decrease for state HPT 150 °C estimated by direct density measurements is close to value of free volume increase estimated by shift of first amorphous halo.",
author = "Gunderov, {D. V.} and Boltynjuk, {E. V.} and Sitdikov, {V. D.} and Abrosimova, {G. E.} and Churakova, {A. A.} and Kilmametov, {A. R.} and Valiev, {R. Z.}",
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TY - JOUR

T1 - Free volume measurement of severely deformed Zr62Cu22Al10Fe5Dy1 bulk metallic glass

AU - Gunderov, D. V.

AU - Boltynjuk, E. V.

AU - Sitdikov, V. D.

AU - Abrosimova, G. E.

AU - Churakova, A. A.

AU - Kilmametov, A. R.

AU - Valiev, R. Z.

N1 - Категории Scopus: Physics and Astronomy (miscellaneous)

PY - 2018/12/5

Y1 - 2018/12/5

N2 - The Zr62Cu22Al10Fe5Dy1 bulk metallic glass (BMG) was subjected to high pressure torsion (HPT) at room temperature and at 150 °C. XRD shows a shift of first amorphous halo towards a low angles, which corresponds to an increase in the first coordination sphere radius and an increase in free volume content approximately by 0.44 % and 0.74 % after HPT processing at temperatures of 20 and 150 °C, respectively. Direct density measurements revealed that HPT at 20 °C and 150 °C leads to a decrease in the density values by 2.1% and 1 %, respectively, in comparison with the initial state. Value of density decrease for state HPT 150 °C estimated by direct density measurements is close to value of free volume increase estimated by shift of first amorphous halo.

AB - The Zr62Cu22Al10Fe5Dy1 bulk metallic glass (BMG) was subjected to high pressure torsion (HPT) at room temperature and at 150 °C. XRD shows a shift of first amorphous halo towards a low angles, which corresponds to an increase in the first coordination sphere radius and an increase in free volume content approximately by 0.44 % and 0.74 % after HPT processing at temperatures of 20 and 150 °C, respectively. Direct density measurements revealed that HPT at 20 °C and 150 °C leads to a decrease in the density values by 2.1% and 1 %, respectively, in comparison with the initial state. Value of density decrease for state HPT 150 °C estimated by direct density measurements is close to value of free volume increase estimated by shift of first amorphous halo.

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U2 - 10.1088/1742-6596/1134/1/012010

DO - 10.1088/1742-6596/1134/1/012010

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JO - Journal of Physics: Conference Series

JF - Journal of Physics: Conference Series

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