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

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2 Scopus citations


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
Issue number1
StatePublished - 5 Dec 2018
Event7th International Conference on Functional Nanomaterials and High Purity Substances, FNM 2018 - Suzdal, Russian Federation
Duration: 1 Oct 20185 Oct 2018

Scopus subject areas

  • Physics and Astronomy(all)

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