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The effect of Ti, Nb, and Ta additions to ZrAlCu metallic glass on the crystallization and formation of the icosahedral phase

Published online by Cambridge University Press:  03 March 2011

J.B. Qiang ,
W. Zhang ,
G.Q. Xie  and
A. Inoue
J.B. Qiang*
Affiliation:
Institute for Materials Research (IMR), Tohoku University, Aoba-Ku, Sendai 980-8577, Japan
W. Zhang
Affiliation:
Institute for Materials Research (IMR), Tohoku University, Aoba-Ku, Sendai 980-8577, Japan
G.Q. Xie
Affiliation:
Institute for Materials Research (IMR), Tohoku University, Aoba-Ku, Sendai 980-8577, Japan
A. Inoue
Affiliation:
Institute for Materials Research (IMR), Tohoku University, Aoba-Ku, Sendai 980-8577, Japan
*
a) Address all correspondence to this author. e-mail: [email protected] On leave from Dalian University of Technology, People’s Republic of China.
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Abstract

The addition of Ti, Nb, or Ta altered the crystallization behavior of the Zr65Al7.5Cu27.5 glass, and a metastable nanoscaled I-phase was obtained on primary crystallization of these quaternary glasses. The complete substitution of Al by Nb also led to the precipitation of I-phase upon crystallization. Negative heats of mixing between the addition metals and the transition metals of the mother alloy were demonstrated to be not a necessary condition for I-phase formation in the present alloy system.

Keywords

AmorphousQuasicrystal
Type
Articles
Information
Journal of Materials Research , Volume 22 , Issue 4 , April 2007 , pp. 1093 - 1097
Copyright
Copyright © Materials Research Society 2007

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References

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