Kinetics and the Mechanism of the Realization of the Reverse alpha-gamma Transformation in Metastable Fe-Ni-Ti Alloys: I. Dilatometric, X-ray Diffraction, Magnetometric, and Metallographic Investigations of the Reverse Transformation

摘要

Kinetics of the development of the reverse alpha - > gamma 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 alpha-gamma 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 alpha-gamma 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.