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Article Dans Une Revue Journal of Magnetism and Magnetic Materials Année : 2020

Mössbauer investigations of the FeCoNiPdx and CrxFeCoNiPd high entropy alloys

Résumé

Two series of FeCoNiPd x and Cr x FeCoNiPd high entropy alloys were investigated using SEM-EDX, XRD technique and Mössbauer spectroscopy. Increasing of Pd content in the FeCoNiPd x samples only slightly influenced the Mössbauer spectra. They were analysed assuming simultaneous presence of hyperfine field and quadrupole splitting distributions, however random direction of observation relative to B hf and EFG caused the average QS value to be close to zero. Increasing of Cr content in the Cr x FeCoNiPd samples resulted in strong decrease of the hyperfine field, its distribution becomes wide and influence of B IS B , () hf hf and EFG on the Mössbauer spectra can not be separated unambiguously. The decomposing of the HEAs compositions into binary artificial Fe-dopant systems, namely [FeCoNi]-Pd and [FeCoNiPd]-Cr, allowed to interpret the magnetic structure of the two investigated series.
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Dates et versions

hal-02944108 , version 1 (17-11-2020)

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K. Berent, M. Calvo-Dahlborg, Jakub Cieslak, Ulf Dahlborg. Mössbauer investigations of the FeCoNiPdx and CrxFeCoNiPd high entropy alloys. Journal of Magnetism and Magnetic Materials, 2020, 518, pp.167371. ⟨10.1016/j.jmmm.2020.167371⟩. ⟨hal-02944108⟩
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