Abstract

In this work we have carried out internal friction and modulus measurements on FeMnCrSiNi samples using an inverted torsion pendulum at 1 Hz. The internal friction peaks associated with the martensitic transformation are clearly observed in the obtained spectra. Analysis of the internal friction spectra allowed us to obtain a linear relation between the peak area and the heating or cooling rate during the direct and reverse transformations. The evolution of the transformation temperatures and the hysteresis of the cycle as well as the area of the internal friction peak have been studied vs. the cycling. A general explanation is discussed that allows us to interpret the whole set of experimental results.

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