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Free volume measurement of severely deformed Zr62Cu22Al10Fe5Dy1 bulk metallic glass

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

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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Verlagsausgabe §
DOI: 10.5445/IR/1000089117
Veröffentlicht am 15.01.2019
DOI: 10.1088/1742-6596/1134/1/012010
Zugehörige Institution(en) am KIT Institut für Nanotechnologie (INT)
Publikationstyp Proceedingsbeitrag
Jahr 2018
Sprache Englisch
Identifikator ISSN: 1742-6588
KITopen-ID: 1000089117
HGF-Programm 43.22.01 (POF III, LK 01)
Erschienen in 7th International Conference on Functional Nanomaterials and High Purity Substances, FNM 2018; Suzdal; Russian Federation; 1 October 2018 through 5 October 2018
Verlag IOP. Bristol
Seiten Art. Nr.: 012010
Serie Journal of Physics: Conference Series ; 1134
Nachgewiesen in Scopus
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