This article is cited in 4 scientific papers (total in 4 papers)
Mechanical properties, strength physics and plasticity
Mechanism of influence of nanocrystal sizes on the parameters of the curves of the pseudoelastic and thermoelastic deformations of alloys with the shape memory effect
Abstract:
The data available in the literature on the influence of the nanocrystal sizes of alloys with the shape memory effect on the parameters of the curves of their pseudoelastic and thermoelastic deformation are analyzed in the framework of the theory of diffuse martensitic transitions (DMT). The peculiarity of the DMT theory is that it is based on both thermodynamic and kinetic relationships that make it sensitive to the alloy structure on the mesoscopic scale. This enables one to state the functional dependence of the parameter of the martensitic deformation of the nanocrystals on the size of their cross section D. As a result of the analysis, it is found that the coefficient of the strain (martensitic) hardening and the hysteresis of the pseudoelastic strain curves of submicrocrystals of the Ni54Fe19Ga27 are changed with D by law 1/D2. The temperature range (Ms−Mf) of the martensitic transition in TiNi alloy nanocrystals is changed by analogy law. These dependences are results of the constrained displacement of dislocations of the phase transformation by transverse sizes of the crystal. A kinetic mechanism of the appearance of the critical nanocrystal size Dk is established; the transition of austenite to martensite does not occur at transverse crystal sizes smaller than the critical size.
Citation:
G. A. Malygin, “Mechanism of influence of nanocrystal sizes on the parameters of the curves of the pseudoelastic and thermoelastic deformations of alloys with the shape memory effect”, Fizika Tverdogo Tela, 61:2 (2019), 288–295; Phys. Solid State, 61:2 (2019), 149–156
\Bibitem{Mal19}
\by G.~A.~Malygin
\paper Mechanism of influence of nanocrystal sizes on the parameters of the curves of the pseudoelastic and thermoelastic deformations of alloys with the shape memory effect
\jour Fizika Tverdogo Tela
\yr 2019
\vol 61
\issue 2
\pages 288--295
\mathnet{http://mi.mathnet.ru/ftt8919}
\crossref{https://doi.org/10.21883/FTT.2019.02.47128.255}
\elib{https://elibrary.ru/item.asp?id=37478081}
\transl
\jour Phys. Solid State
\yr 2019
\vol 61
\issue 2
\pages 149--156
\crossref{https://doi.org/10.1134/S1063783419020173}
Linking options:
https://www.mathnet.ru/eng/ftt8919
https://www.mathnet.ru/eng/ftt/v61/i2/p288
This publication is cited in the following 4 articles:
G. A. Malygin, “Stabilization of martensite on nanoprecipitates and kinetics of explosive martensite transition”, Phys. Solid State, 63:1 (2021), 94–100
D. D. Kuznetsov, E. I. Kuznetsova, A. V. Mashirov, A. S. Loshachenko, D. V. Danilov, G. A. Shandryuk, V. G. Shavrov, V. V. Koledov, “In situ TEM study of phase transformations in nonstoichiometric geisler alloy Ni46Mn41In13”, Phys. Solid State, 64:1 (2022), 15–21
G. A. Malygin, “The mechanism of influence of disperse nanoparticles on parameters of the martensitic transitions in alloys with the shape memory effect”, Phys. Solid State, 61:11 (2019), 2083–2089
G. A. Malygin, “Analysis of size effects during martensitic transitions in epitaxial films and microparticles of the Ni–Mn–Sn alloy”, Phys. Solid State, 61:7 (2019), 1251–1258