Abstract
Crystallization kinetics of Mg84Ni12.5Y3.5 amorphous ribbons produced by the melt-spinning method, was studied by DSC analysis and X-ray diffraction. The effect of heating rate (from 2 to 240 K min−1) was investigated in the temperature range from 298 to 673 K. The results showed that the crystallization process took place in two stages: a) crystallization of part of the amorphous matrix to an intermediate phase and hcp-Mg, and b) transformation of the intermediate phase and the remaining amorphous material to Mg2Ni+Mg (solid solution of Y in Mg). Increasing the heating rate from 2 to 240 K min−1 results in increases of the temperature difference between the two-step crystallization of the first stage transformation processes from 33 to 56 K and in increases of the temperature difference between the two-stage transformation from 62 to 97 K.
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Korin, E., Soifer, L., Mogiliyanskii, D. et al. Effect of the Heating Rate on Crystallization Kinetics of Mg84Ni12.5Y3.5 Amorphous Ribbons. Journal of Thermal Analysis and Calorimetry 58, 663–669 (1999). https://doi.org/10.1023/A:1010168914922
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DOI: https://doi.org/10.1023/A:1010168914922