Abstract
The boron concentration of Fe40Ni40P14B6, Fe32Ni36Cr14P12B6 and Fe40Ni40B20 metallic glasses is measured by neutron activation analysis on both surfaces of the ribbon samples. It is found that the boron concentration is always higher on the bright side of the ribbon than that on the dull side which is in contact with the cold surface of the wheel during the rapid quenching from the melt. A possible explanation is given in terms of the solid–liquid interface moving rapidly from the cooled surface to the free surface when preparing the samples. [Russian text ignored].
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