Influence of the Cooling Rate on Austenite Ordering and Martensite Transformation in a Non-Stoichiometric Alloy Based on Ni-Mn-In

Dmitriy Kuznetsov; Elena Kuznetsova; Alexey Mashirov; Denis Danilov; Georgiy Shandryuk; Irek Musabirov; Igor Shchetinin; Alexey Prokunin; Svetlana von Gratowski; Vladimir Shavrov

doi:10.3390/jcs7120514

Journal of Composites Science (Dec 2023)

Influence of the Cooling Rate on Austenite Ordering and Martensite Transformation in a Non-Stoichiometric Alloy Based on Ni-Mn-In

Dmitriy Kuznetsov,
Elena Kuznetsova,
Alexey Mashirov,
Denis Danilov,
Georgiy Shandryuk,
Irek Musabirov,
Igor Shchetinin,
Alexey Prokunin,
Svetlana von Gratowski,
Vladimir Shavrov

Affiliations

Dmitriy Kuznetsov: Kotelnikov Institute of Radioengineering and Electronics of Russian Academy of Sciences, 125009 Moscow, Russia
Elena Kuznetsova: M.N. Mikheev Institute of Metal Physics of Ural Branch of Russian Academy of Sciences, 620108 Ekaterinburg, Russia
Alexey Mashirov: Kotelnikov Institute of Radioengineering and Electronics of Russian Academy of Sciences, 125009 Moscow, Russia
Denis Danilov: IRC for Nanotechnology of the Science Park of St. Petersburg State University, 199034 St. Petersburg, Russia
Georgiy Shandryuk: A.V. Topchiev Institute of Petrochemical Synthesis of Russian Academy of Sciences, 119991 Moscow, Russia
Irek Musabirov: Institute for Metals Superplasticity Problems of Russian Academy of Sciences, 450001 Ufa, Russia
Igor Shchetinin: Department of Physical Materials Science, National University of Science and Technology MISIS, 119049 Moscow, Russia
Alexey Prokunin: Kotelnikov Institute of Radioengineering and Electronics of Russian Academy of Sciences, 125009 Moscow, Russia
Svetlana von Gratowski: Kotelnikov Institute of Radioengineering and Electronics of Russian Academy of Sciences, 125009 Moscow, Russia
Vladimir Shavrov: Kotelnikov Institute of Radioengineering and Electronics of Russian Academy of Sciences, 125009 Moscow, Russia

DOI: https://doi.org/10.3390/jcs7120514
Journal volume & issue: Vol. 7, no. 12
p. 514

Abstract

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The effect of the melt cooling rate on the atomic ordering of austenite and, as a consequence, on the martensitic transformation of a nonstoichiometric alloy of the Ni-Mn-In system has been studied. In situ TEM observations revealed differences in the mechanism of phase transformations of the alloy subjected to different cooling conditions. It is shown that during quenching a high density of antiphase boundaries (APB) is formed and the alloy is in the austenite–martensitic (10M and 14M) state up to a temperature of 120 K. In a slowly cooled alloy, a lower APB density is observed, and a two-stage transformation, L21/B2 → 10M → 14M, occurs in the range of 150–120 K.

Published in Journal of Composites Science

ISSN: 2504-477X (Online)
Publisher: MDPI AG
Country of publisher: Italy
LCC subjects: Technology; Science
Website: http://www.mdpi.com/journal/jcs

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