Abstract
A study of the crystallization of the metallic glass Ni81P19 was undertaken. A portion of the crystallization time-temperature-transformation curve was determined and compared with curves published by other authors. The composition and structure of the as-received metallic glass was determined. Crystallization kinetics of the glass and activation energy data were determined. Crystallization of the glass involved nucleation and growth of the crystalline phase from both the surface of quenched-in crystals and the bulk of the material. The activation energies obtained were similar for incubation, nucleation and growth. This along with supporting experimental evidence suggests that there is no activation barrier to nucleation and that all stages of crystallization are controlled by diffusion.
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Hamlyn-Harris, J.H., StJohn, D.H. & Sood, D.K. The thermal stability of Ni-11 wt% P metallic glass. J Mater Sci 25, 3008–3016 (1990). https://doi.org/10.1007/BF00584919
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DOI: https://doi.org/10.1007/BF00584919