Vol. 35, Issue 3, pp. 339-346

Abstract

The structural stability of Co₇₈Si₉B₁₃ and Fe₇₈Si₉B₁₃ metallic glasses was investigated by differential scanning calorimetry (DSC), X-ray diffraction, Hall effect and electrical resistivity methods. It was found that at first isochronal annealing leads to the formation of a-M (M = Co, Fe) phases.This process is followed by the formation of M₂B phases. The phases were identified by X-ray diffraction method and their structures were confirmed with the use of quantum chemistry method. The creation of crystalline phases decreases abruptly the Hall and electrical resistivities. The alloy containing Fe appeared to have a much wider range of structural stability.