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Mössbauer spectrometry of near equiatomic Fe–Cr alloys: Influence of preparation method

Authors: P. Delcroix, G. Le Caër and B.F.O. Costa

Ref.: Journal of Alloys and Compounds 434-435, 584-586 (2007)

Abstract: Mössbauer spectra reflect the strong sensitivity of the distribution of hyperfine magnetic field distributions (HMFDs) of near equiatomic Fe–Cr alloys to the method of preparation of samples. Whatever the way a bcc Fe0.51Cr0.49 alloy is prepared, powders produced from it by ball milling or by filing exhibit a unique HMFD at room temperature. The associated average hyperfine magnetic field, 16 T, is significantly smaller than those of alloys, which are cold-rolled and (/or) annealed at some stage of their preparation process (∼17–19 T).

DOI: 10.1016/j.jallcom.2006.08.085