Saw-tooth-like bulk metallic glass structures with greatly enhanced energy-absorption performance

被引：8
作者：
Chen, S. H. [1 ]
Chan, K. C. [1 ]
Wang, G. [1 ,2 ]
Yi, J. [1 ]
机构：
[1] Hong Kong Polytech Univ, Dept Ind & Syst Engn, Adv Mfg Technol Res Ctr, Kowloon, Hong Kong, Peoples R China
[2] Shanghai Univ, Lab Microstruct, Shanghai 200444, Peoples R China
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2016年 / 661卷
关键词：
Cellular materials; Energy absorption capacity; Bulk metallic glass; Shear bands; ALUMINUM-ALLOY FOAMS; DEFORMATION-BEHAVIOR; MECHANICAL-PROPERTIES; COMPRESSIVE PROPERTY; STRESS GRADIENT; CELLULAR METALS; MICROSTRUCTURE; OPTIMIZATION; COMPOSITES; PLASTICITY;
D O I：
10.1016/j.jallcom.2015.11.100
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
In this work, saw-tooth-like bulk metallic glass (BMG) structures were developed, exhibiting greatly enhanced energy-absorption performance as compared with existing cellular metals, such as conventional metal foams and BMG foams/honeycombs. The excellent energy absorption capacity is attributed to the change of the deformation modes from bending, buckling and collapse of the structural units in conventional cellular solids to large plastic deformation in the present BMG structures. Additionally, the energy absorption capacity of designed saw-tooth-like BMG structures can also be tuned by tailoring the periodic distribution of the structural units. (C) 2015 Elsevier B.V. All rights reserved.
引用
收藏
页码：49 / 54
页数：6
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