Influence of Mn content on the magnetic properties and microstructure in Fe–Mn–Mo alloys

Archives of Metallurgy and Materials

“…Measurements were made at room temperature. The radioactive source of the spectrometer used is 50 mCi 57 Co. A Normos-90 computer program was used to obtain Mössbauer parameters. The Mössbauer spectra of the examined sample were calibrated α-Fe, and isomer shifts were given relative to the center of the α-Fe.…”

“…The Mössbauer effect arises from transitions between energy levels in atomic nucleus as a result of absorption of γ rays by the material [6]. In Fe-Mn alloys, the γ and ε phases usually show paramagnetic properties, while the α' phase exhibits ferromagnetic properties [55][56][57]. Samples exhibiting paramagnetic properties in the Mössbauer Spectrometer give single peaks, while samples exhibiting ferromagnetic and antiferromagnetic properties give sextet peaks [29,31].…”