Abstract:
The paper demonstrates the shape memory effect in a ferromagnetic micro-sample of Heusler alloy Ni50Mn18.5Ga25Cu6.5. The microsample was made using focused ion beam technology and has an overall size of 23 × 1.28 × 4 μm. It was found that the value of elastic deformation in the martensitic phase exceeds the value of the shape memory effect, which is based on residual deformation due to twinning. The maximum value of the shape memory effect was 3.4%.
Keywords:
shape memory effect on microscale, Ni–Mn–Ga–Cu, Heusler alloys.
The experimental part of the observation of the shape memory effect was performed due to the subsidy for the Program of enhancing the competitive ability 5-100 of Immanuel Kant Baltic Federal University; the remainder of this work was supported by the Russian Foundation for Basic Research and the Moscow Government (project no. 19-37-70012).
Citation:
A. V. Mashirov, A. V. Irzhak, A. V. Koshelev, N. V. Andreev, K. A. Kolesov, A. P. Kamantsev, V. V. Koledov, V. G. Shavrov, “Shape memory effect in microsize sample of Ni–Mn–Ga–Cu Heusler alloy”, Fizika Tverdogo Tela, 62:6 (2020), 860–863; Phys. Solid State, 62:6 (2020), 968–971
\Bibitem{MasIrzKos20}
\by A.~V.~Mashirov, A.~V.~Irzhak, A.~V.~Koshelev, N.~V.~Andreev, K.~A.~Kolesov, A.~P.~Kamantsev, V.~V.~Koledov, V.~G.~Shavrov
\paper Shape memory effect in microsize sample of Ni--Mn--Ga--Cu Heusler alloy
\jour Fizika Tverdogo Tela
\yr 2020
\vol 62
\issue 6
\pages 860--863
\mathnet{http://mi.mathnet.ru/ftt8395}
\crossref{https://doi.org/10.21883/FTT.2020.06.49338.35M}
\elib{https://elibrary.ru/item.asp?id=43800494}
\transl
\jour Phys. Solid State
\yr 2020
\vol 62
\issue 6
\pages 968--971
\crossref{https://doi.org/10.1134/S1063783420060153}
Linking options:
https://www.mathnet.ru/eng/ftt8395
https://www.mathnet.ru/eng/ftt/v62/i6/p860
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Shengxian Wei, Fene Hu, Liping Deng, Bao Yue, Yiming Cao, Xijia He, Yuanlei Zhang, Yanru Kang, Kun Xu, Zhe Li, “Effect of Cu Doping on Phase Transition, Thermal Strain, and Thermal Expansion Property in Polycrystalline Ni50Mn23-xCuxGa27 Alloys”, Physica Status Solidi (a), 220:19 (2023)
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Francesca Villa, Emanuele Bestetti, Roberto Frigerio, Michele Caimi, Corrado Tomasi, Francesca Passaretti, Elena Villa, “Elastocaloric Properties of Polycrystalline Samples of NiMnGaCu Ferromagnetic Shape Memory Alloy under Compression: Effect of Improvement of Thermoelastic Martensitic Transformation”, Materials, 15:20 (2022), 7123
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