Influence of particle arrangement on the compression of functionally graded metal syntactic foams

被引：32
作者：
Movahedi, Nima [1 ]
Conway, Stephen [1 ]
Belova, Irina V. [1 ]
Murch, Graeme E. [1 ]
Fiedler, Thomas [1 ]
机构：
[1] Univ Newcastle, Sch Engn, Ctr Mass & Thermal Transport Engn Mat, Callaghan, NSW, Australia
来源：
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2019年 / 764卷
关键词：
Functionally graded metal syntactic foam; Particle topology; Expanded perlite; Activated carbon; Mechanical properties; Deformation mechanism; MECHANICAL-PROPERTIES; BEHAVIOR; MICROSTRUCTURE;
D O I：
10.1016/j.msea.2019.138242
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
This study probes the systematic spatial variation of two different types of filler particles in Metal Syntactic Foams (MSFs). The particle distribution is utilized to fabricate longitudinal and radial functionally graded metal syntactic foams. In addition, MSFs containing a random mixture of the same particles are tested. All samples are produced using a single step counter-gravity infiltration casting process. Quasi-static compression tests are performed to investigate the mechanical properties and deformation mechanisms of the resulting MSFs. The results indicate that MSF deformation is a combination of shear band and layer-by-layer modes. Moreover, functionally grading along the longitudinal direction yields the highest plateau stress and energy absorption.
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页数：9
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