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Kinetics and the mechanism of the realization of the reverse α-γ transformation in metastable Fe-Ni-Ti alloys: I. Dilatometric, X-ray diffraction, magnetometric, and metallographic investigations of the reverse transformation

  • Structure, Phase Transformations, and Diffusion
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Abstract

Kinetics of the development of the reverse α → γ transformation has been studied in detail by various methods. It has been established that in the middle part of the temperature interval of the reverse α-γ transformation the rate of the development of transformation is maximum, which indicates its athermal nature. Both in the beginning and at the completing stage of the development, the α-γ transformation is realized according to the isothermal kinetics. An assumption is made that it is precisely the difference in the kinetics that is critical for the observed anomalous behavior of the physical characteristics of the alloy discussed in the work.

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Authors and Affiliations

  1. Institute of Metal Physics, Ural Division, Russian Academy of Sciences, ul. S. Kovalevskoi 18, Ekaterinburg, 620041, Russia

    N. D. Zemtsova & E. I. Anufrieva

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  1. N. D. Zemtsova
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  2. E. I. Anufrieva
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Original Russian Text © N.D. Zemtsova, E.I. Anufrieva, 2007, published in Fizika Metallov i Metallovedenie, 2007, Vol. 104, No. 6, pp. 594–604.

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Zemtsova, N.D., Anufrieva, E.I. Kinetics and the mechanism of the realization of the reverse α-γ transformation in metastable Fe-Ni-Ti alloys: I. Dilatometric, X-ray diffraction, magnetometric, and metallographic investigations of the reverse transformation. Phys. Metals Metallogr. 104, 571–581 (2007). https://doi.org/10.1134/S0031918X07120058

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  • DOI: https://doi.org/10.1134/S0031918X07120058

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