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Pronounced energy absorption capacity of cellular bulk metallic glasses
Author(s) -
Shunhua Chen,
K.C. Chan,
Fufa Wu,
L. Xia
Publication year - 2014
Publication title -
applied physics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.182
H-Index - 442
eISSN - 1077-3118
pISSN - 0003-6951
DOI - 10.1063/1.4869229
Subject(s) - materials science , amorphous metal , absorption (acoustics) , composite material , deformation (meteorology) , bending , metal , work (physics) , absorption capacity , chemical engineering , metallurgy , alloy , mechanical engineering , engineering
Cellular bulk metallic glasses (BMGs) with macroscopic cellular structures were designed and fabricated. The cellular BMGs exhibited remarkable energy absorption capacity as compared with reported BMG foams and honeycombs. The enhanced energy absorption capability is attributed to the large plastic bending of the struts, the blunting of the cracks, and the large plastic deformation at the nodes. This work shows that, in cellular BMGs, the macroscopic cellular structures are more efficient in dissipating mechanical energy than microscopic cellular structures, opening a window for developing energy absorption devices using BMGs.Department of Industrial and Systems Engineerin

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