Abstract
Methods of mechanical spectroscopy (determination of the internal-energy dissipation and the elasticity modulus), X-Ray diffraction, and calorimetry have been used to study the specific features of the reversible martensitic transformation in the Fe—22Mn—3Si alloy (wt %). A detailed study has been given to the specific features of the internal-energy dissipatio n during the direct and reverse martensitic transformations in a wide range of heating rates, frequencies, and deformation amplitudes. Particular emphasis has been placed on multiple thermal cycling of the sample through the martensitic-transformation range and its effect on the martensitic-transformation parameters, such as the transformation start and finish temperatures, the value of the thermal hysteresis, and the transformation kinetics.
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