Structure of a Hydride Based on TiZrHfMoTa High-Entropy Alloy

S. A. Lushnikov; Лушников С. А.; S. S. Agafonov; Агафонов С. С.

doi:10.31857/S0002337X23080110

Structure of a Hydride Based on TiZrHfMoTa High-Entropy Alloy

Authors: Lushnikov S.A.¹, Agafonov S.S.²
Affiliations:
1. Moscow State University
2. Kurchatov Institute (National Research Centre)
Issue: Vol 59, No 8 (2023)
Pages: 866-870
Section: Articles
URL: https://medjrf.com/0002-337X/article/view/668168
DOI: https://doi.org/10.31857/S0002337X23080110
EDN: https://elibrary.ru/ROYCJY
ID: 668168

Cite item

Full Text

Open Access
Restricted Access

Access granted
Restricted Access

Subscription Access

Abstract
About the authors
References
Supplementary files
Statistics

Abstract

We have synthesized a hydride phase based on a TiZrHfMoTa high-entropy alloy with a body-centered cubic lattice. Hydride formation has been shown by X-ray and neutron diffraction to be accompanied by a cubic-to-tetragonal lattice transformation. Structure analysis of a deuteride based on the same alloy has made it possible to locate the deuterium atoms and determine their position parameters.

Keywords

high-entropy alloys, X-ray and neutron diffraction, structure of hydrides

About the authors

S. A. Lushnikov

Moscow State University

Email: lushnikov@hydride.chem.msu.ru
119991, Moscow, Russia

S. S. Agafonov

Kurchatov Institute (National Research Centre)

Author for correspondence.
Email: lushnikov@hydride.chem.msu.ru
123182, Moscow, Russia

References

Miracle D.B., Senkov O.N. A Critical Review Of High Entropy Alloys And Related Concepts // Acta Materialia. 2017. V. 122. P. 448–511.
Xu Z.Q., Ma Z.L., Wang M., Chen Y.W., Tan Y.D., Cheng X.W. Design of Novel Low-Density Refractory High Entropy Alloys for High-Temperature Applications // Mater. Sci. Eng., A. 2019. V. 755. № 7. P. 925–931.
Rempel A.A., Gel’chinskii B.R. High-Entropy Alloys: Preparation, Properties and Practical Application // Izvestiya. Ferrous Metallurgy. 2020. V. 63. № 3–4. P. 248–253.
Kunce I., Polanski M., Bystrzycki J. Structure and Hydrogen Storage Properties of a High Entropy Z-rTiVCrFeNi Alloy Synthesized Using Laser Engineered Net Shaping (LENS) // Int. J. Hydrogen Energy. 2013. V. 38. № 27. P. 12180–12189.
Joo S.H., Okulov L.V., Kato H. Unusual Two-Step Dealloying Mechanism of Nanoporous TiVNbMoTa High-Entropy Alloys during Liquid Metal Dealloying // J. of Mater. Technol. 2021. V. 14. P. 2945–2953.
Juan C.C., Tsai M.H., Tsai C.W., Lin C.M., Wang W. R et al. Enhanced Mechanism Properties of HfMoTaTiZr and HfMoNbTaTiZr Refractory High-Entropy Alloys // Intermetallics. 2015. V. 62. P. 76–83.
Zlotea C., Sow M.A., Ek G., Couzinié J.-P., Perrière L., Guillot I., Bourgon J., Møller K.T., Jensen T.R., Akiba E., Sahlberg M. Hydrogen Sorption in TiZrNbHfTa High Entropy Alloy // J. Alloys Comp. 2019. V. 775. P. 667–674.
Somenkov V.A. Structure of Hydrides // Ber Bunsen Cesel. Physik. Chem. 1972. V. 76. P. 724–728.