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Mechanical properties of bulk metallic glasses and composites

Published online by Cambridge University Press:  03 March 2011

J. Eckert ,
J. Das ,
S. Pauly  and
C. Duhamel
J. Eckert*
Affiliation:
IFW Dresden, Institut für Komplexe Materialien, Postfach 270116, D-01171 Dresden, Germany
J. Das
Affiliation:
IFW Dresden, Institut für Komplexe Materialien, Postfach 270116, D-01171 Dresden, Germany
S. Pauly
Affiliation:
IFW Dresden, Institut für Komplexe Materialien, Postfach 270116, D-01171 Dresden, Germany; and FG Physikalische Metallkunde, FB 11 Material- und Geowissenschaften, Technische Universität Darmstadt, D-64287 Darmstadt, Germany
C. Duhamel
Affiliation:
FG Physikalische Metallkunde, FB 11 Material- und Geowissenschaften, Technische Universität Darmstadt, D-64287 Darmstadt, Germany; and IFW Dresden, Institut für Komplexe Materialien, Postfach 270116, D-01171 Dresden, Germany
*
a)Address all correspondence to this author.e-mail: j.eckert@ifw-dresden.de
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Abstract

The development of bulk metallic glasses and composites for improving the mechanical properties has occurred with the discovery of many ductile metallic glasses and glass matrix composites with second phase dispersions with different length scales. This article reviews the processing, microstructure development, and resulting mechanical properties of Zr-, Ti-, Cu-, Mg-, Fe-, and Ni-based glassy alloys and also considers the superiority of composite materials containing different phases for enhancing the strength, ductility, and toughness, even leading to a “work-hardening-like” behavior. The morphology, shape, and length scale of the second phase dispersions are crucial for the delocalization of shear bands. The article concludes with some comments regarding future directions of the investigations of spatially inhomogeneous metallic glasses.

Keywords

AmorphousStress/strain relationshipToughness

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Type
Reviews
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Journal of Materials Research , Volume 22 , Issue 2 , September 2006 , pp. 285 - 301
Copyright
Copyright © Materials Research Society 2007

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References

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