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The morphology of α-Fe crystals which grow in the amorphous Fe80(C1−xBx)20 alloys

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Abstract

Crystallization behaviour of amorphous Fe80(C1−x B x )20 alloys, obtained by splat-cooling technique, for x values ranging from zero to unity has been investigated mainly by transmission electron microscopy. The crystalline phase which first appeared in the amorphous matrix was α-Fe for all alloys studied. However, the morphology of α-Fe phase changed from a spherical shape for low x values to a watch-glass shape for intermediate x values and to dendritic for large x values. The nucleation of α-Fe crystals was homogeneous for low x samples while preferred nucleation on edges and surfaces was noted for samples with higher x values. The final volume fraction of α-Fe phase before the appearance of the second crystalline phase increased with the increase in x.

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Shimomura, K., Shingu, P.H. & Ozaki, R. The morphology of α-Fe crystals which grow in the amorphous Fe80(C1−xBx)20 alloys. J Mater Sci 15, 1175–1182 (1980). https://doi.org/10.1007/BF00551806

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  • DOI: https://doi.org/10.1007/BF00551806

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