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Surface crystallization in melt-spun metallic glasses

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Abstract

A series of hypoeutectic FeSiB metallic glasses produced by single-roller melt spinning were found to have substantial wheel-side surface crystallization. These crystals were shown to be associated with areas on the ribbon surface which were in good contact with the wheel rather than in the depressions formed by gas entrainment during casting, as has been previously suggested for similar effects in other alloys. Transmission electron microscopy revealed that the crystals have a fine cellular substructure with the intercellular spaces freezing as glass and that the structure becomes progressively finer during growth.

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Gibson, M.A., Delamore, G.W. Surface crystallization in melt-spun metallic glasses. J Mater Sci 23, 1164–1170 (1988). https://doi.org/10.1007/BF01154574

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  • DOI: https://doi.org/10.1007/BF01154574

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