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The effect of Ni-substitution on physical Properties of Fe72-xB24Nb4Nix Bulk Metallic Glassy Alloys

Published online by Cambridge University Press:  07 March 2011

Ansar Masood ,
Anis Biswas ,
V. Ström ,
L. Belova ,
J. Ågren  and
K. V. Rao
Ansar Masood
Affiliation:
Department of Materials Science-Tmfy-MSE, the Royal Institute of Technology, S- 100 44, Stockholm, Sweden
Anis Biswas
Affiliation:
Department of Materials Science-Tmfy-MSE, the Royal Institute of Technology, S- 100 44, Stockholm, Sweden
V. Ström
Affiliation:
Department of Materials Science-Tmfy-MSE, the Royal Institute of Technology, S- 100 44, Stockholm, Sweden
L. Belova
Affiliation:
Department of Materials Science-Tmfy-MSE, the Royal Institute of Technology, S- 100 44, Stockholm, Sweden
J. Ågren
Affiliation:
Department of Materials Science-Tmfy-MSE, the Royal Institute of Technology, S- 100 44, Stockholm, Sweden
K. V. Rao
Affiliation:
Department of Materials Science-Tmfy-MSE, the Royal Institute of Technology, S- 100 44, Stockholm, Sweden
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Abstract

We have succeeded in producing bulk metallic glass by partial substitution of Fe with Ni in Fe-B-Nb alloys which could otherwise be only melt spun into amorphous ribbons. Substitution by Ni in the Fe72-xB24Nb4Nix alloys with (x ~2, 4, 6, 8, 10, 12 and 14) improves the glass forming ability of the materials and as a result rods of same compositions can be fabricated. Magnetically the BMG alloys remain soft with coercitivities below 500 mOe- However, the electrical resistivity of the system decreases significantly by as much as a factor of two with the increase of Ni concentration, and becomes more metallic like with a positive temperature coefficient.

Keywords

metalmagneticamorphous
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1300: Symposium U – Bulk Metallic Glasses and their Applications , 2011 , mrsf10-1300-u06-07
Copyright
Copyright © Materials Research Society 2011

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References

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