Abstract
Fe-Mo-Cu-B, FINEMET-type and Al-based ribbons were investigated by differential scanning calorimetry (DSC) in both scanning and isothermal regimes. The devitrification of rapidly quenched ribbons is a multistage process. Our studies have established that the kinetics of the nanocrystal formation stage (being the primary crystallization, R1, or the main transformation stage) is characterized by four principal peculiarities: (i) The scanning exothermal DSC peak has the large high temperature part. (ii) Any pre-annealing at temperatures below the R1 peak shifts the peak to higher temperatures, decreasing its enthalpy. (iii) The isothermal transformation exotherm does not shape any peak. (iv) The thermograms taken at all heating rates and at each annealing temperature follow the unique Surifiach plot master curve. This curve is a straight line indicating the normal-grain-growth exponent < 2. The nanocrystal formation in metallic glasses does not follow the conventional Johnson-Mehl-Avrami kinetics. The normal-grain-growth kinetic law, proposed for coarsening of extremely fine crystalline grains in heterogeneous thin films, could also in the case of R1 nanocrystalline formation stage in metallic ribbons rationalize all peculiar results without any correction.
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References
Weinberg, M.C. (1991) Interpretation of DTA Experiements Used for Crystal Nucleation Rate Determinations, J. Amer. Ceram. Soc. 74, 1905–1909.
Christian, J.W. (1975) The Theory of Transformations in Metals and Alloys, Pergamon Press, Oxford.
Miglierini, M., Degmová, J., Kaňuch, T., Švec, P., Illeková, E. and Janičkovič, D. (2004) Magnetic Microstructure of Amorphous/Nanocrystalline FeMoCuB Alloys, in Properties and Applications of Nanocrystalline Alloys from Amorphous Precursors, B. Idzikowski, P. Švec and M. Miglierini (eds.), Kluwer Academic Publishers, 421–436.
Illeková, E., Kuhnast, F.A., Fiorani, J.M. and Naguet, Ch. (1995) Peculiarities of the Crystallization Kinetics of Fe73.5Cu1Nb3Si13.5B9 Ribbon to the Nanostructured Phase, J. Non-Cryst. Solids 192&193, 556–560.
Illeková, E. (2002) FINEMET-type Nanocrystallization Kinetics, Thermochim. Acta 387, 47–56.
Suriñach, S., Baró, M.D., Clavaguera-Mora, M.T. and Clavaguera, N. (1983) Kinetic Study of Isothermal and Continuous Heating Crystallization in GeSe2-GeTe-Sb2Te3 alloy glasses, J. Non-Cryst. Solids 58, 209–217.
Illeková, E. (1996) The Crystallization Kinetics of Fe80Si4B16 Metallic Glass, Thermochim. Acta 280/281, 289–301.
Šesták, J. (1984) Thermodynamical Properties of Solids, Academia Prague, Praha.
Illeková, E., unpublished results.
Miglierini, M., unpublished results.
Kissinger, H.E. (1957) Reaction Kinetics in Differential Thermal Analysis, Anal. Chem. 27, 1702–1706.
Illeková, E., Janičkovič, D., Kubeika, P., Švec, P. and Gachon, J.C. (2003) Thermodynamic Limitations of the Clustering in the Al90Fe7Nb3 Alloy, Mat. Sci. Eng. A. (in print).
Greer, A.L. (1982) Crystallization Kinetics of Fe80B20 Glass, Acta Metall. 30, 171–192.
Kelton, K.F. and Spaepen, F. (1985) A Study of the Devitrification of Pd82Sil8 over a Wide Temperature Range, Acta Metall. 33, 455–464.
Chen, L.C. and Spaepen, F. (1991) Analysis of Calorimetric Measurements of Grain Growth, J. Appl. Phys. 69, 679–688.
Allen, D.R., Foley, J.C. and Perepezko, J.H. (1998) Nanocrystal Development During Primary Crystallization of Amorphous Alloys, Acta Mater. 46, 431–440.
Hermann, H., Mattern N., Roth, S. and Uebele, P. (1997) Simulation of Crystallization Processes in Amorphous Iron-Based Alloys, Phys. Rev. B56, 13888–13897.
Kelton, K.f., Croat, T.K., Gangopadhyay, A.K., Xing, L.-Q., Greer, A.L., Weyland, M., Li X. and Rajan K. (2003) Mechanisms for Nanocrystal Formation in Metallic Glasses, J. Non. Cryst. Solids 317, 71–77.
Clavaguera-Mora, M.T., Clavaguera, N., Crespo, D. and Pradell, T. (2002) Crystallisation Kinetics and Microstructure Development in Metallic Systems, Progress in Materials Science 47, 559–619.
Gupta, P.K., Baranta, G. and Denry, I.L., (2003) DTA Peak Shift Studies of Primary Crystallization in Glasses, J. Non. Cryst. Solids 317, 254–269.
Atkinson, H.V. (1988) Theories of Normal Grain Growth in Pure Single Phase System, Acta Metall. 36, 469–491.
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IllekovÁ, E. (2005). Kinetic Characterization of Nanocrystal Formation in Metallic Glasses. In: Idzikowski, B., Švec, P., Miglierini, M. (eds) Properties and Applications of Nanocrystalline Alloys from Amorphous Precursors. NATO Science Series, vol 184. Springer, Dordrecht. https://doi.org/10.1007/1-4020-2965-9_7
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DOI: https://doi.org/10.1007/1-4020-2965-9_7
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