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Effects of gaseous hydrogenation on crystallization behavior of melt-spun Mg63Pr15Ni22 amorphous ribbons

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Abstract

Effects of gaseous hydrogenation on crystallization behavior of melt-spun Mg63Pr15Ni22 amorphous ribbons have been investigated. The crystallization peak temperature T p1 shifted to higher temperature with increasing heating rate for the un-hydrogenated Mg63Ni22Pr15 metallic glass, however, it is nearly unchanged for the hydrogenated sample. The present work indicates that the crystallization is a nucleation-and-growth process for the un-hydrogenated Mg63Ni22Pr15 metallic glass. However, the crystallization of hydrogenated sample begins with nucleation and then diffusion-controlled growth takes place.

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Acknowledgments

This work is supported by the Natural Science Foundation of Jiangsu Province (BK2007213), the Young Scholar Foundation of Nanjing University of Science and Technology (Njust200404), and “Qinglan Project” Foundation of Jiangsu Province.

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  1. Department of Materials Science and Engineering, Nanjing University of Science and Technology, 210094, Nanjing, China

    Y. L. Du, W. Li, Y. H. Deng & F. Xu

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  1. Y. L. Du
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  2. W. Li
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Correspondence to Y. L. Du.

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Du, Y.L., Li, W., Deng, Y.H. et al. Effects of gaseous hydrogenation on crystallization behavior of melt-spun Mg63Pr15Ni22 amorphous ribbons. J Therm Anal Calorim 99, 191–195 (2010). https://doi.org/10.1007/s10973-009-0148-7

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  • DOI: https://doi.org/10.1007/s10973-009-0148-7

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