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.
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.
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