Design and preparation of a three-dimensional interface structure Al/Mg laminated composites
To solve the problems of low interlayer bonding strength in Al/Mg Laminated metal composites (LMCs). This work took advantage of the fact that the three-dimensional (3D) interface structure can increase the interface contact area, hinder crack propagation, and delay interface cracking, and proposed...
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| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2025-09-01
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| Series: | Materials & Design |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0264127525008238 |
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| Summary: | To solve the problems of low interlayer bonding strength in Al/Mg Laminated metal composites (LMCs). This work took advantage of the fact that the three-dimensional (3D) interface structure can increase the interface contact area, hinder crack propagation, and delay interface cracking, and proposed to use spark plasma sintering (SPS) to prepare Al/Mg LMCs with 3D interface structure. The influence of the sintering temperature on the interface microstructure and mechanical properties of 2A12-Al/AZ91-Mg LMCs was systematically studied. The results indicate that 2A12-Al/AZ91-Mg LMCs with 3D interface structure similar to wave shape or gear meshing shape can be obtained by SPS integrated sintering. When the SPS integrated sintering temperature increased from 420 °C to 440 °C, a typical three-layer diffusion layer was formed at the 2A12-Al/AZ91-Mg interface. Moreover, the diffusion layer gradually transformed from a solid-phase diffusion characteristic to a solid–liquid coexistence diffusion characteristic. Meanwhile, the interface shear strength at 430 °C was the largest, which was 49.4 ± 2.67 MPa. The high interfacial shear strength benefits from the hindrance and suppression of cracks by this 3D interface structure. |
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| ISSN: | 0264-1275 |