Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Influence of the Cooling Rate on Austenite Ordering and Martensite Transformation in a Nonstichiommetric Alloy based on Ni-Mn-In

Dmitriy Kuznetsov
* ORCID logo ,
Elena Kuznetsova
,
Alexey Mashirov
ORCID logo ,
Denis Danilov
ORCID logo ,
Georgiy Alexandrovich Shandryuk
,
Irek Musabirov
,
Igor V. Shchetinin
,
Alexey Prokunin
ORCID logo ,
Svetlana Von Gratowski
ORCID logo ,
Vladimir Shavrov
Version 1 : Received: 31 October 2023 / Approved: 31 October 2023 / Online: 31 October 2023 (15:39:10 CET)

A peer-reviewed article of this Preprint also exists.

Kuznetsov, D.; Kuznetsova, E.; Mashirov, A.; Danilov, D.; Shandryuk, G.; Musabirov, I.; Shchetinin, I.; Prokunin, A.; von Gratowski, S.; Shavrov, V. Influence of the Cooling Rate on Austenite Ordering and Martensite Transformation in a Non-Stoichiometric Alloy Based on Ni-Mn-In. J. Compos. Sci. 2023, 7, 514. Kuznetsov, D.; Kuznetsova, E.; Mashirov, A.; Danilov, D.; Shandryuk, G.; Musabirov, I.; Shchetinin, I.; Prokunin, A.; von Gratowski, S.; Shavrov, V. Influence of the Cooling Rate on Austenite Ordering and Martensite Transformation in a Non-Stoichiometric Alloy Based on Ni-Mn-In. J. Compos. Sci. 2023, 7, 514.

Abstract

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 120K. 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.

Keywords

austenite; ordering; martensitic transformation; Ni-Mn-In; in situ TEM; DSC; TGA; TMA

Subject

Physical Sciences, Condensed Matter Physics

Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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