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Plasticity of a TiCu-based bulk metallic glass: Effect of cooling rate

Published online by Cambridge University Press:  31 January 2011

J. Shen ,
Y.J. Huang  and
J.F. Sun
J. Shen*
Affiliation:
School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China
Y.J. Huang
Affiliation:
School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China
J.F. Sun
Affiliation:
School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China
*
a)Address all correspondence to this author. e-mail: [email protected]
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Abstract

Compressive deformation was experimentally investigated for Ti41.5Cu42.5Zr2.5Hf5Ni7.5Si1 bulk metallic glass (BMG) fabricated at different cooling rates. It was found that the ductility of the BMG alloy increased with increasing of the cooling rate in solidification. The alloy with a monolithic amorphous structure exhibited a large ductility, up to 12%. The effect of cooling rate on the ductility of the BMG alloy is interpreted in terms of the variation in amorphous nature and free volume of the as-cast materials.

Keywords

AmorphousAlloyFracture
Type
Articles
Information
Journal of Materials Research , Volume 22 , Issue 11 , November 2007 , pp. 3067 - 3074
Copyright
Copyright © Materials Research Society 2007

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