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Crystallization study of amorphous Fe40Ni40B20 by electrical resistivity measurement

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Abstract

The crystallization in amorphous Fe40Ni40B20 alloy has been studied by electrical resistivity measurement. It shows a three stage compared to the more conventional two-stage crystallization behaviour in many metallic glasses. The Johnson-Mehl-Avrami equation was found to be operative only for 40% transformed crystallized volume for the highest measured isotherm (740 K). The Avrami exponent and activation energy were found to be 1.75 and 53 kcal mol−1, respectively. The low activation energy in the amorphous alloy has been explained by the structural relaxation model.

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Authors and Affiliations

  1. Magnetic Materials Group, MTP division, National Metallurgical Laboratory, 831 007, Jamshedpur, India

    A. Mitra, V. Rao, S. Pramanik & O. N. Mohanty

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  1. A. Mitra
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  2. V. Rao
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  3. S. Pramanik
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  4. O. N. Mohanty
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Mitra, A., Rao, V., Pramanik, S. et al. Crystallization study of amorphous Fe40Ni40B20 by electrical resistivity measurement. J Mater Sci 27, 5863–5868 (1992). https://doi.org/10.1007/BF01119751

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  • DOI: https://doi.org/10.1007/BF01119751

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