Mössbauer spectrometry of model binary Fe.sub.100-x./sub.Cr.sub.x./sub.(1 <= x <= 50) alloys

0567289 - FZÚ 2023 RIV DE eng J - Článek v odborném periodiku
Košovský, D. - Miglierini, M. - Pavúk, M. - Sedláčková, K. - Kmječ, Tomáš - Kopeček, Jaromír
Mössbauer spectrometry of model binary Fe_100-xCr_x(1 <= x <= 50) alloys.
Physica Status Solidi B. Roč. 259, č. 6 (2022), č. článku 2100632. ISSN 0370-1972. E-ISSN 1521-3951
Institucionální podpora: RVO:68378271
Klíčová slova: Mössbauer spectrometry * metals * magnetism * microstructure
Obor OECD: Atomic, molecular and chemical physics (physics of atoms and molecules including collision, interaction with radiation, magnetic resonances, Mössbauer effect)
Impakt faktor: 1.6, rok: 2022
Způsob publikování: Omezený přístup
https://doi.org/10.1002/pssb.202100632

Herein, several ways to evaluate Mossbauer spectra of model binary Fe100-xCrx alloys with chromium content varying in the range from 1 to 50 at% (x = 0.94, 2.2, 4.9, 10.4, 15.4, 22.1, and 52.9) are discussed. For low chromium concentrations (up to 15 at%), the method of binomial distribution of individual sextets is suitable. Depending upon the Cr content, the number of sextets used can be, however, as high as 20. The specific number of sextets is determined according to probabilities of individual atomic sites calculated from binomial distribution. Mossbauer spectra of samples with Cr concentrations higher than 20 at% are evaluated by distributions of hyperfine magnetic fields. The composition of model alloys is verified using X-ray fluorescence. Their surface is analyzed by two different surface-sensitive methods: scanning electron microscopy and atomic force microscopy. The main technique used to analyze the materials' subsurface layers is conversion electron Mossbauer spectroscopy. The applied fitting models and results are useful in studies of the microstructure of real types of construction and stainless steels.
Trvalý link: https://hdl.handle.net/11104/0338561