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Modifications of the phase selection during the crystallization of amorphous Al-Y-Fe

Published online by Cambridge University Press:  01 February 2011

N. Boucharat ,
H. Rösner ,
R. J. Hebert ,
J. H. Perepezko  and
G. Wilde
N. Boucharat
Affiliation:
Forschungszentrum Karlsruhe, Institute of Nanotechnology, P.O. Box 3640, 76021 Karlsruhe, Germany
H. Rösner
Affiliation:
Forschungszentrum Karlsruhe, Institute of Nanotechnology, P.O. Box 3640, 76021 Karlsruhe, Germany
R. J. Hebert
Affiliation:
Forschungszentrum Karlsruhe, Institute of Nanotechnology, P.O. Box 3640, 76021 Karlsruhe, Germany
J. H. Perepezko
Affiliation:
University of Wisconsin-Madison, Department of Materials Science and Engineering, Madison, WI 53706, USA
G. Wilde
Affiliation:
Forschungszentrum Karlsruhe, Institute of Nanotechnology, P.O. Box 3640, 76021 Karlsruhe, Germany
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Abstract

The effect of thermal treatments, plastic deformation and inoculation of quenched Al88Y7Fe5 glasses with immiscible Pb and In on their crystallization behavior has been studied based on calorimetric and microstructural analyses. The results demonstrate the effect of the plastic deformation and of the inoculants to promote nanocrystallization. Moreover, the formation of a pronounced concentration gradient at the growing nanocrystal interface provides for the kinetic stability of the nanostructure and the modification of the phase evolution sequence of the crystallization reactions.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 806: Symposium MM – Amorphous and Nanocrystalline Metals , 2003 , MM1.8
Copyright
Copyright © Materials Research Society 2004

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References

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