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 Ni$_{46}$Mn$_{41}$In$_{13}$”, Fizika Tverdogo Tela, 2021, Volume 63, Issue 11,Pages 1725

This article is cited in 4 papers

XXI All-Russian School-Seminar on Condensed Matter Physics (SPFKS-21), Yekaterinburg, March 18-25, 2021
Metals

In situ TEM study of phase transformations in nonstoichiometric geisler alloy Ni$_{46}$Mn$_{41}$In$_{13}$

D. D. Kuznetsov^a, E. I. Kuznetsova^b, A. V. Mashirov^a, A. S. Loshachenko^c, D. V. Danilov^c, G. A. Shandryuk^d, V. G. Shavrov^a, V. V. Koledov^a

^a Kotelnikov Institute of Radio Engineering and Electronics, Russian Academy of Sciences, Moscow, Russia
^b Institute of Metal Physics, Ural Division of the Russian Academy of Sciences, Ekaterinburg
^c Interdisciplinary Resource Center for Nanotechnologies, St. Petersburg State University
^d Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, Moscow, Russia

Abstract: This paper presents a study of the metamagnetostructural transition of the martensitic type in the Ni$_{46}$Mn$_{41}$In$_{13}$ alloy with magnetic shape memory and inverse magnetocaloric effect. The characteristic temperatures of the direct transition starting $M_s$ = 253 K and its finishing $M_f$ = 164 K, as well as the reverse temperatures $A_s$ = 203 K and $A_f$ = 236 K, respectively, were determined by differential scanning calorimetry. The characteristic peculiarities of the transition: a decrease of the $M_s$ and the presence of a residual austenite phase, as well as pre-martensitic states, were studied using transmission electron microscopy. The estimated the thickness of alloy was 50 nm, when martensitic transition suppressed.

Keywords: martensitic transformation, metamagnetostructural transformation, premartensitic states.

Received: 08.07.2021
Revised: 13.07.2021
Accepted: 16.07.2021

DOI: 10.21883/FTT.2021.11.51568.10s