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Casting Protocols for the Production of Open Cell Aluminum Foams by the Replication Technique and the Effect on Porosity
Published on: December 11, 2014
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Three-Point Bending Behavior of Aluminum Foam Sandwich with Different Interface Bonding Methods
Peng Huang1, Xi Sun1, Xixi Su1
1School of Materials Science and Engineering, Northeastern University, Shenyang 110819, China.
Materials (Basel, Switzerland)
|October 14, 2022
Summary
Metallurgical bonding significantly enhances aluminum foam sandwich (AFS) mechanical properties. This method improves peak load by 24% and energy absorption 12.2 times compared to glued AFS.
Area of Science:
- Materials Science
- Mechanical Engineering
Background:
- The interface bonding method critically impacts the mechanical properties of aluminum foam sandwich (AFS) structures.
- Understanding these bonding mechanisms is crucial for optimizing AFS performance in various applications.
Purpose of the Study:
- To investigate the effect of different interface bonding methods on the mechanical properties of AFS.
- To explore the interface bonding mechanism of AFS prepared by powder metallurgy.
Main Methods:
- Powder metallurgy was used to prepare AFS with metallurgical bonding.
- Panel peeling tests were conducted to determine shear properties.
- Three-point bending tests analyzed flexural properties and energy absorption of both metallurgically-bonded and glued AFS.
Main Results:
- Element diffusion (Mg, Si, Cu) from the core layer to the panels formed a metallurgical composite layer.
- Metallurgical bonding exhibited higher strength between the panel and core layer compared to the foam core layer.
- Metallurgically-bonded AFS showed a 24% increase in peak load and 12.2 times higher energy absorption than glued AFS.
Conclusions:
- Powder metallurgy facilitates effective metallurgical bonding in AFS.
- Metallurgical bonding significantly outperforms glued interfaces in terms of shear strength, flexural properties, and energy absorption.
- The enhanced mechanical performance of metallurgically-bonded AFS makes it a superior choice for demanding applications.
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