Mechanical behavior of heat-treated Al-Cu-Mg open-cell foams

被引：7
|
作者：
Figueroa, I. A. [1 ]
Mendieta, I. [1 ]
Azamar, M. F. [1 ]
Lara-Rodriguez, G. A. [1 ]
Novelo-Peralta, O. [1 ]
机构：
[1] Univ Nacl Autonoma Mexico, Inst Invest Mat, Circuito Exterior S-N,Cd Univ, Mexico City 04360, DF, Mexico
来源：
MATERIALS LETTERS | 2021年 / 284卷
关键词：
Open-cell metallic foams; Al-Cu-Mg alloys; Aging treatment; Compressive behavior; Energy absorption capacity;
D O I：
10.1016/j.matlet.2020.129021
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Al-Cu-Mg Open-Cell Foams were heat-treated and mechanically analyzed. The foams were fabricated by the replication casting technique with Al-2.1Cu-1.25 Mg (wt.%) with NaCl grains as preform. The yield stress increased with the aging time, showing a maximum value at 24 h. As the aging time increased, the Plateau region shortened, being attributed to the precipitates formation. The aging effect on the mechanical behavior improved the energy absorption capacity. The variation of the energy absorbed was attributed to the cell walls hardening. This study contributes to the development of a new generation of heat treatable opened cell metallic foams and its strengthening mechanism. (c) 2020 Elsevier B.V. All rights reserved.
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页数：4
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