Effect of the interface on the compressive properties of magnesium syntactic foams

被引：18

作者：

Kubelka, Pierre ^{[1
]}

Kaedaer, Csilla ^{[2
,3
]}

Jost, Norbert ^{[1
]}

机构：

[1] Pforzheim Univ, Inst Mat & Mat Technol IWWT, Tiefenbronner Str 65, D-75175 Pforzheim, Germany

[2] Budapest Univ Technol & Econ, Dept Mat Sci & Engn, Fac Mech Engn, Muegyetem Rkp 3, H-1111 Budapest, Hungary

[3] MTA BME Lendulet Composite Met Foams Res Grp, Muegyetem Rakpart 3, H-1111 Budapest, Hungary

来源：

MATERIALS LETTERS | 2021年 / 287卷

关键词：

Magnesium; Ceramics; Interface; Syntactic foam; Mechanical behavior;

D O I：

10.1016/j.matlet.2020.129293

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The compressive deformation characteristics of a commercially pure magnesium-based syntactic foam, manufactured by infiltration technique, were investigated. The influence of the interface between the hollow spheres and the matrix on the deformation behavior was analyzed. The interface was modified by using two different cooling conditions with (a) quenching after the complete infiltration and (b) cooling down in the casting machine, and by (c) an additional heat treatment after (a): normalizing at 500 degrees C for 120 min. It has been found that in each condition a reaction zone formed, which consisted of a depleted layer in the hollow sphere and an interface layer in the Mg matrix with gradually changing composition. Condition (a) resulted in the highest peak strength, while condition (c) leads to the formation of micropores, causing the decrease of the stiffness and peak strength. (C) 2020 Elsevier B.V. All rights reserved.

引用

页数：4

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