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Effect of Gold Addition on the Nanostructure of Amorphous Fe–Zr–B Alloy

Published online by Cambridge University Press:  31 January 2011

Y. Zhang ,
U. Czubayko ,
N. Wanderka ,
F. Zhu  and
H. Wollenberger
Y. Zhang*
Affiliation:
Hahn-Meitner-Institut Berlin GmbH, Glienickerstr. 100, D-14109 Berlin, Germany, and Department of Materials Physics, University of Science and Technology Beijing, Beijing 100083, People's Republic of China
U. Czubayko
Affiliation:
Hahn-Meitner-Institut Berlin GmbH, Glienickerstr. 100, D-14109 Berlin, Germany
N. Wanderka
Affiliation:
Hahn-Meitner-Institut Berlin GmbH, Glienickerstr. 100, D-14109 Berlin, Germany
F. Zhu
Affiliation:
Department of Materials Physics, University of Science and Technology Beijing, Beijing 100083, People's Republic of China
H. Wollenberger
Affiliation:
Hahn-Meitner-Institut Berlin GmbH, Glienickerstr. 100, D-14109 Berlin, Germany
*
a)Address all correspondence to this author. e-mail: [email protected]
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Abstract

The behavior of Au in the course of the primary crystallization process of Fe87Zr7B5Au1 amorphous alloy was examined by use of atom probe field ion microscopy and transmission electron microscopy. In the early stage of crystallization, Au atoms were still distributed uniformly in the amorphous matrix. Au atoms form clusters at a later stage when more α–Fe particles are present. The Au clusters were observed to be separated from α–Fe particles, indicating that Au clusters do not stimulate nucleation of α–Fe particles. During the growth of α–Fe grains, cosegregation of Au and Zr occurred without any influence on the α–Fe grain growth. We conclude that Au addition has no effect on nanocrystallization of Fe–Zr–B amorphous alloys.

Type
Articles
Information
Journal of Materials Research , Volume 15 , Issue 6 , June 2000 , pp. 1271 - 1279
Copyright
Copyright © Materials Research Society 2000

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