Crystallization processes and resulting phase structure of Sm–Fe–B melt-spun ribbons

Abstract The crystallization behaviour of amorphous melt-spun Sm x Fe 80− x B 20 ribbons is investigated by differential scanning calorimetry, X-ray diffraction and Mossbauer spectrometry. On increasing the Sm content, the crystallization temperature reaches a maximum for a critical Sm content ( x c ≈8) and the main crystallization products are different below and above x c . This is attributed to a change in the short-range local order in the amorphous alloy.