Volume 41, Number 3, february I 1998
|Page(s)||245 - 250|
|Published online||01 September 2002|
Transformation kinetics in partially crystallized amorphous alloys —a theoretical approach
Institute of Solid State and Materials Research Dresden,
Postfach 270016, D-01171 Dresden, Germany
Accepted: 5 December 1997
A model for the kinetics of phase transformation in amorphous alloys is proposed. The theoretical approach takes into account microstructural changes occurring during transformation and the interaction of as-created nuclei and growing crystallites with already crystallized regions. An integral equation for the time evolution of the transformed volume fraction is derived. It is shown that the critical radius of nuclei has significant influence on the transformation kinetics. The approximations made are accurate for low and medium fraction of transformed volume up to 25 vol%.
PACS: 05.20.Dd – Kinetic theory / 05.70.Fh – Phase transitions: general aspects / 61.43.Dq – Amorphous semiconductors, metals, and alloys
© EDP Sciences, 1998
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