Hostname: page-component-586b7cd67f-r5fsc Total loading time: 0 Render date: 2024-11-22T22:25:39.406Z Has data issue: false hasContentIssue false
  • English
  • Français

Parameter determination of an analytical model for phase transformation kinetics: Application to crystallization of amorphous Mg–Ni alloys

Published online by Cambridge University Press:  03 March 2011

F. Liu ,
F. Sommer  and
E.J. Mittemeijer
F. Liu
Affiliation:
Max Planck Institute for Metals Research, Heisenbergstrasse 3, D-70569, Stuttgart, Germany
F. Sommer*
Affiliation:
Max Planck Institute for Metals Research, Heisenbergstrasse 3, D-70569, Stuttgart, Germany
E.J. Mittemeijer
Affiliation:
Max Planck Institute for Metals Research, Heisenbergstrasse 3, D-70569, Stuttgart, Germany
*
a) Address all correspondence to this author. e-mail: [email protected]
Get access

Abstract

This study used an analytical model for phase-transformation kinetics. We used different combinations of various nucleation mechanisms [mixed nucleation (site saturation plus continuous nucleation), Avrami nucleation, and site saturation plus Avrami nucleation] and growth mechanisms (volume diffusion-controlled growth and interface-controlled growth) for a single transformation. Our work incorporated the effect of impingement of the growing particles. These factors have been applied to the same experimental results to find out the prevailing mechanisms. We made a detailed analysis for the determination of the parameters of the analytical phase-transformation model, in order to determine the most reasonable nucleation and growth modes, and the values for the activation energies of nucleation and growth. We used the model to study the crystallization kinetics of Mg82Ni18 and Mg88.7Ni11.3, as measured by means of both isothermal and isochronal differential scanning calorimetry.

Keywords

Metallic glassKineticsNucleation & growth
Type
Articles
Information
Journal of Materials Research , Volume 19 , Issue 9 , September 2004 , pp. 2586 - 2596
Copyright
Copyright © Materials Research Society 2004

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

1.Mittemeijer, E.J.: Analysis of the kinetics of phase transformations. J. Mater. Sci. 27, 3977 (1992).CrossRefGoogle Scholar
2.Christian, J.W.: The Theory of Transfomation in Metals and Alloys. Part 1: Equilibrium and General Kinetics Theory (Oxford: Pergamon Press; Oxford, U.K., 1975), pp. 23, 125.Google Scholar
3.Kempen, A.T.W., Sommer, F. andMittemeijer, E.J.: The isothermal and isochronal kinetics of the crystallisation of bulk amorphous Pd40Cu30P20Ni10. Acta Mater. 50, 1319 (2002).CrossRefGoogle Scholar
4.Kempen, A.T.W., Sommer, F. andMittemeijer, E.J.: Determination and interpretation of isothermal and non-isothermal transformation kinetics; the effective activation energies in terms of nucleation and growth. J. Mater. Sci. 37, 1321 (2002).CrossRefGoogle Scholar
5.Mittemeijer, E.J. andSommer, F.: Solid State Phase Transformation Kinetics: A Modular Transformation Model. Z. Metallkd. 93, 352 (2002).CrossRefGoogle Scholar
6.Kempen, A.T.W., Nitsche, H., Sommer, F. andMittemeijer, E.J.: Crystallisation kinetics of amorphous magnesium-rich magnesium-copper and magnesium-nickel alloys. Metal. & Mater. Trans. 33A, 1041 (2002).CrossRefGoogle Scholar
7.Ghosh, G., Chandrasekaran, M. andDelaey, L.: Isothermal crystallization kinetics of Ni24Zr76 and Ni24(Zr-X)76 amorphous alloys. Acta Metall. 39, 925 (1991).CrossRefGoogle Scholar
8.Calka, A. andRadlinski, A.P.: Decoupled bulk and surface crystallization in glassy metallic alloys- description of isothermal crystallization by a local value of the Avrami exponent. J. Mater. Res. 3, 59 (1988).CrossRefGoogle Scholar
9.Calka, A. andRadlinski, A.P.: DSC Study of surface induced crystallization in Pd-Si metallic glasses. Acta Metall. 35, 1823 (1987).CrossRefGoogle Scholar
10.Liu, F., Sommer, F. andMittemeijer, E.J.: An analytical model for isothermal and isochronal transformation kinetics. J. Mater. Sci. 39, 1621 (2004).CrossRefGoogle Scholar