The short-range structure of annealed amorphous FeBSiCuNb alloys is investigated by means of X-ray diffraction. At temperatures higher than 450 °C b.c.c. Fe(Si) is formed in an amorphous matrix. The crystallization is accompanied by a change of the local symmetry of Fe atom environment. The short-range order of the formed crystalline Fe(Si) phase is not realized in the amorphous as-quenched state. Due to the precipitation of iron and silicon during crystallization the chemical composition and the short-range order of the amorphous matrix are changed.
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Mattern et al. (1993) studied this question.
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