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Fizika Tverdogo Tela, 2019, Volume 61, Issue 8, Pages 1492–1498
DOI: https://doi.org/10.21883/FTT.2019.08.47976.442 (Mi ftt8731) 		 
This article is cited in 4 scientific papers (total in 4 papers)

Mechanical properties, strength physics and plasticity

Spall strength of shock-heated hafnium and the equations of state of its polymorphic modifications

A. M. Molodets, A. A. Golyshev

Institute of Problems of Chemical Physics, Russian Academy of Sciences, Chernogolovka, Moscow region
Full-text PDF (496 kB) Citations (4)
DOI: https://doi.org/10.21883/FTT.2019.08.47976.442
Abstract: he spall strength of hafnium heated by a loading shock wave to thousandths of temperatures and subjected to transformation into denser polymorphic modifications has been determined. The following problems are solved. The pressure profiles at the sample-soft barrier interface in the spall experiments with flat one-dimensional loading are measured. The equations of state of three polymorphic modifications of hafnium are constructed in the pressure range up to 100 GPa. The thermodynamic states of hafnium under the conditions of the performed experiments were calculated. These calculations, together with the results of measurements of pressure profiles, made it possible to determine the spall strength of hafnium heated in a shock compression-unloading cycle. The spall strength of hafnium was -4 (1) GPa at a temperature of 1680 (380) K. Mathematical modeling of spall experiments in the framework of a one-dimensional hydrocode was performed.
Keywords: spallation, hafnium, polymorphism, shock waves, phase diagram, equation of state, high pressures.
Funding agency Grant number
State Atomic Energy Corporation ROSATOM Н.4х.241.9Б.17.1013
Ministry of Education and Science of the Russian Federation 0089-2019-0001
This work was supported by the State Atomic Energy Corporation Rosatom under the state contract no. H.4kh.241.9B.17.1013 dated February 20, 2017, and the state order no. 0089-2019-0001.
Received: 02.04.2019
Revised: 02.04.2019
Accepted: 02.04.2019
English version:
Physics of the Solid State, 2019, Volume 61, Issue 8, Pages 1437–1443
DOI: https://doi.org/10.1134/S1063783419080201
Bibliographic databases:
Document Type: Article
Language: Russian
Citation: A. M. Molodets, A. A. Golyshev, “Spall strength of shock-heated hafnium and the equations of state of its polymorphic modifications”, Fizika Tverdogo Tela, 61:8 (2019), 1492–1498; Phys. Solid State, 61:8 (2019), 1437–1443
Citation in format AMSBIB
\Bibitem{MolGol19}
\by A.~M.~Molodets, A.~A.~Golyshev
\paper Spall strength of shock-heated hafnium and the equations of state of its polymorphic modifications
\jour Fizika Tverdogo Tela
\yr 2019
\vol 61
\issue 8
\pages 1492--1498
\mathnet{http://mi.mathnet.ru/ftt8731}
\crossref{https://doi.org/10.21883/FTT.2019.08.47976.442}
\elib{https://elibrary.ru/item.asp?id=41130149}
\transl
\jour Phys. Solid State
\yr 2019
\vol 61
\issue 8
\pages 1437--1443
\crossref{https://doi.org/10.1134/S1063783419080201}
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    • This publication is cited in the following 4 articles:
    Citing articles in Google Scholar: Russian citations, English citations
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