Morphology of the products of hydride transformations in the cupola two-phase region of the Pd – H system

Authors

  • Gregory I. Zhirov Belarusian National Technical University, 65 Niezaliežnasci Avenue, Minsk 220013

Keywords:

hydride phase transformation, Pd – H system, palladium hydride, morphology of the products of transformation, hydrogen treatment, hydrogen concentration stresses, hydrogen phase stresses

Abstract

In this paper, we present the results of a systematic study of the development of hydride phase transformations in the cupola two-phase region of thermodynamically open Pd – H system. The direct hydride phase transformation was initiated by increasing the hydrogen pressure. The morphological features of the course of direct hydride phase transformations are discussed. It is shown that the phase-structural and morphological peculiarities of the development of hydride α → β transformations is determined by the characteristic features of the emerging hydrogen stresses: when initiating by  increasing the hydrogen pressure at the initial stages, the hydrogen concentration stresses play the main role. The results of the experiments showed that as the temperature of the hydride α → β transformation approaches the point Tcr and the hydrogen supply rate increases, the contribution of the nucleation and growth mechanism of a new phase to the transformation gradually decreases and disappears. And the contribution of the growth mechanism of β phase precipitations from the sharp edges of the precipitated grains increases. The discussion considers the influence of hydrogen concentration and hydrogen phase stresses on the morphology of the products of phase transformation. The analysis of the results was carried out from the concept of the diffusion-cooperative nature of hydride phase transformations.        

Author Biography

  • Gregory I. Zhirov, Belarusian National Technical University, 65 Niezaliežnasci Avenue, Minsk 220013

    PhD (physics and mathematics); associate professor at the department of technical physics, faculty of information technology and robotics

References

  1. Fedotov AK. Fizicheskoe materialovedenie. Chast’ 2. Fazovye prevrashcheniya v metallakh i splavakh [Physical materials science. Part 2. Phase transformations in metals and alloys]. Minsk: Vyshjejshaja shkola; 2012. 446 p. Russian.
  2. Popov AA, Zhilyakova MA, Zorina MA. Fazovye i strukturnye prevrashcheniya v metallicheskikh splavakh [Phase and structural transformations in metal alloys]. Ekaterinburg: Izdatel’stvo Ural’skogo universiteta; 2018. 316 p. Russian.
  3. Razumov IK, Gornostyrev YuN, Katsnel’son MI. [On the theory of phase transformations in iron and steel based on first-principles approaches]. Fizika metallov i metallovedenie. 2017;118(4):380–408. Russian.
  4. Spivak LV, Shchepina NE. [Calorimetric effects in structural-phase transformations in metals and alloys]. Fizika metallov i metallovedenie. 2020;121(10):1059–1087. Russian.
  5. Ngene P, Longo A, Mooij L, Bras W, Dam B. Metal-hydrogen systems with an exceptionally large and tunable thermodynamic destabilization. Nature Communications. 2017;8:1846. DOI: 10.1038/s41467-017-02043-9.
  6. Goltsov VA, editor. Progress in hydrogen treatment of materials. Donetsk: Kassiopeya; 2001. 543 p.
  7. Karpenko GV, Kripyakevich RI. Vliyanie vodoroda na svoistva stali [Effect of hydrogen on steel properties]. Moscow: Metallurgizdat; 1962. 197 p. Russian.
  8. Sklyuev PV. Vodorod i flokeny v krupnykh pokovkakh [Hydrogen and flocks in large forgings]. Moscow: Mashgiz; 1963. 188 p. Russian.
  9. Zhirov GI, Goltsova MV. [Grain shift in palladium and PdHx alloys under hydrogen impact]. Fizika metallov i metallovedenie. 2002;94(3):66–71. Russian.
  10. Goltsova MV. [Video recording of inverse hydride transformations in the Pd – H system]. In: Naukovi praci Donec’kogo nacional’nogo tehnichnogo universytetu. Serija: Metalurgija. Vypusk 40, tom 2 [Scientific works of the Donetsk National Technical University. Series: Metallurgy. Issue 40, volume 2]. Donetsk: Donetsk National Technical University; 2002. p. 99–104. Ukrainian.
  11. Wicke E, Brodowsky H. Hydrogen in palladium and palladium alloys. In: Alefeld G, Völkl J, editors. Hydrogen in metals II. Application-oriented properties. Berlin: Springer-Verlag; 1978. p. 73–156 (Topics in applied physics; volume 29). Russian edition: Wicke E, Brodowsky H. Vodorod v palladii i splavakh palladiya. In: Alefeld G, Völkl J, editors. Vodorod v metallakh. Tom 2. Prikladnye aspekty. Moscow: Mir; 1981. p. 91–189 (Problemy prikladnoi fiziki).
  12. Kovalenko AD. Osnovy termouprugosti [Fundamentals of thermoelasticity]. Kyiv: Naukova dumka; 1970. 307 p. Russian.
  13. Timoshenko SP, Goodier JN. Theory of elasticity. 3rd edition. New York: McGraw-Hill Book Company; 1970. 608 p. Russian edition: Timoshenko SP, Goodier J. Teoriya uprugosti. Reitman MI, translator; Shapiro GS, editor. 2nd edition. Moscow: Nauka; 1979. 560 p.
  14. Favier F, Walter EC, Zach MP, Benter T, Penner RM. Hydrogen sensors and switches from electrodeposited palladium mesowire arrays. Science. 2001;293(5538):2227−2231. DOI: 10.1126/science.10631.
  15. Novikov II. Teoriya termicheskoi obrabotki metallov [Theory of heat treatment of metals]. 4th edition. Moscow: Metallurgiya; 1986. 480 p. Russian.
  16. Fromm E, Gebhardt E, Herausgeber. Gase und Kohlenstoff in Metallen. Berlin: Springer-Verlag; 1976. XX, 748 S. (Reine und angewandte Metallkunde in Einzeldarstellungen; Band 26). Russian edition: Fromm E, Gebkhardt E. Gazy i uglerod v metallakh. Burtsev VT, translator; Linchevskii BV, editor. Moscow: Metallurgiya; 1980. 711 p.
  17. Alefeld G, Völkl J, editors. Hydrogen in metals I. Basic properties. Berlin: Springer-Verlag; 1978. XVI, 428 p. (Topics in applied physics; volume 28). Russian edition: Alefeld G, Völkl J, editors. Vodorod v metallakh. Tom 1. Osnovnye svoistva. Moscow: Mir; 1981. 476 p. (Problemy prikladnoi fiziki).
  18. Alefeld G, Völkl J, editors. Hydrogen in metals II. Application-oriented properties. Berlin: Springer-Verlag; 1978. XXII, 390 p. (Topics in applied physics; volume 29). Russian edition: Alefeld G, Völkl J, editors. Vodorod v metallakh. Tom 2. Prikladnye aspekty. Moscow: Mir; 1981. 431 p. (Problemy prikladnoi fiziki).
  19. Goltsova MV, Artemenko YuA, Zhirov GI. Hydride transformations: nature, kinetics, morphology. Alternative Energy and Ecology (ISJAEE). 2014;1:70–84. Russian.
  20. Zhirov GI. Hydrogen phase naklep of palladium in result of reverse hydride β → α phase transformation. Alternative Energy and Ecology (ISJAEE). 2014;1:85–96. Russian.

Downloads

Additional Files

Published

2023-01-31

Issue

No. 1 (2023): Journal of the Belarusian State University. Physics

Section

Condensed State Physics

License

The authors who are published in this journal agree to the following:

  1. The authors retain copyright on the work and provide the journal with the right of first publication of the work on condition of license Creative Commons Attribution-NonCommercial. 4.0 International (CC BY-NC 4.0).
  2. The authors retain the right to enter into certain contractual agreements relating to the non-exclusive distribution of the published version of the work (e.g. post it on the institutional repository, publication in the book), with the reference to its original publication in this journal.
  3. The authors have the right to post their work on the Internet (e.g. on the institutional store or personal website) prior to and during the review process, conducted by the journal, as this may lead to a productive discussion and a large number of references to this work. (See The Effect of Open Access.)

How to Cite

(1)
Zhirov, G. I. Morphology of the Products of Hydride Transformations in the Cupola Two-Phase Region of the Pd – H System. Журнал Белорусского государственного университета. Физика 2023, No. 1, 34–42. https://doi.org/10.33581/2520-2243-2023-1-34–42.
Crossref
Scopus
Google Scholar
Europe PMC