A metallic glass syntactic foam with enhanced energy absorption performance

被引：22
作者：
Lin, H. [1 ]
Wang, H. Y. [1 ]
Lu, C. [2 ]
Dai, L. H. [1 ]
机构：
[1] Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China
[2] Curtin Univ, Dept Mech Engn, Perth, WA 6845, Australia
来源：
SCRIPTA MATERIALIA | 2016年 / 119卷
基金：
中国国家自然科学基金;
关键词：
Bulk metallic glass; Syntactic foam; Energy absorption; Shear bands; MATRIX COMPOSITES; PLASTICITY;
D O I：
10.1016/j.scriptamat.2016.03.034
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
By using the high-pressure melt infiltration technique, a syntactic foam is fabricated with bulk metallic glass and alumina cenospheres. Compared to pure metallic glass foams, the new foam possesses a greatly enhanced energy absorbing capacity of 113.6 MJ m(-3) due to the combination of high strength, stability and ductility. It is shown that the high strength of the foam primarily results from alumina cenospheres, which enhance its stability and induce a stable stress platform. Both the collapse of struts and multiple shear bands in metallic glass matrix accommodate large deformation. (C) 2016 Elsevier Ltd. All rights reserved.
引用
收藏
页码：47 / 50
页数：4
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