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Porous and Foamed Amorphous Metals

Published online by Cambridge University Press:  31 January 2011

Alan H. Brothers  and
David C. Dunand
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Abstract

This article reviews the state of the art in the field of porous amorphous metals by describing current processing techniques, mechanical properties, and potential applications. In addition to the reduction in density, the main benefit of introducing porosity in amorphous metals is the improvement in compressive ductility and energy absorption. This ductilizing effect is explained by: (1) shear-band interruption by individual pores at low porosities and (2) stable plastic bending of thin struts at higher porosities, with cellular amorphous metals displaying compressive ductilities of up to 80%.

Type
Research Article
Information
MRS Bulletin , Volume 32 , Issue 8: Bulk Metallic Glasses: At the Cutting Edge of Metals Research , August 2007 , pp. 639 - 643
Copyright
Copyright © Materials Research Society 2007

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