Mechanosynthesis of supersaturated solid solutions of Sn in near-equiatomic bcc FeCo
Résumé
The mechanosynthesis of Fe-Co-Sn ternary alloys from initial powder mixtures of composition (Fe50−x/2Co50−x/2)Snx is studied for x ≤ 33 at.%. Disordered nanocrystalline bcc solid solutions are formed in that way up to Sn contents as large as ∼20 at.%. The dissolution of Sn in near-equiatomic bcc Fe-Co is unambiguously proven by X-ray diffraction and 57Fe and 119Sn Mössbauer spectroscopy.