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, 2020, Volume 62, Issue 6,Pages <nobr>860

This article is cited in 7 papers

International conference ''Phase transitions, critical and nonlinear phenomena in condensed matter'', Makhachkala, September 15-20, 2019
Magnetism

Shape memory effect in microsize sample of Ni–Mn–Ga–Cu Heusler alloy

A. V. Mashirov^ab, A. V. Irzhak^c, A. V. Koshelev^d, N. V. Andreev^c, K. A. Kolesov^e, A. P. Kamantsev^a, V. V. Koledov^a, V. G. Shavrov^a

^a Kotel'nikov Institute of Radio Engineering and Electronics, Russian Academy of Sciences, Moscow
^b Immanuel Kant Baltic Federal University, Kaliningrad
^c National University of Science and Technology «MISIS», Moscow
^d Lomonosov Moscow State University
^e Bauman Moscow State Technical University

Abstract: The paper demonstrates the shape memory effect in a ferromagnetic micro-sample of Heusler alloy Ni$_{50}$Mn$_{18.5}$Ga$_{25}$Cu$_{6.5}$. The microsample was made using focused ion beam technology and has an overall size of 23 $\times$ 1.28 $\times$ 4 $\mu$m. 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.

Received: 30.12.2019
Revised: 30.12.2019
Accepted: 10.01.2020

DOI: 10.21883/FTT.2020.06.49338.35M