Effect of heat treatment on the interface and property enhancement of reduced graphene oxide/2024Al matrix composites

The interface mismatch and weak bonding between the aluminum matrix and reduced graphite oxide (rGO) limits the reinforcing effect of reduced graphene oxide-reinforced aluminum matrix composites. This study utilized vacuum hot-pressing sintering and hot extrusion methods to fabricate rGO/2024Al comp...

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Bibliographic Details
Published in:Journal of materials science 2024-05, Vol.59 (20), p.8810-8830
Main Authors: Yang, Bin, Liu, Kunding, Wang, Aiqin, Su, Bo, Xie, Jingpei, Xin, Yaolong
Format: Article
Language:English
Subjects:
Aluminum
Aluminum base alloys
Aluminum matrix composites
Bonding strength
Characterization and Evaluation of Materials
Chemistry and Materials Science
Classical Mechanics
Composite materials
Composites & Nanocomposites
Crystallography and Scattering Methods
Graphene
Heat treating
Hot extrusion
Hot pressing
Interfacial bonding
Load transfer
Materials Science
Polymer Sciences
Solid Mechanics
Solution heat treatment
Strengthening
Tensile strength
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Summary:The interface mismatch and weak bonding between the aluminum matrix and reduced graphite oxide (rGO) limits the reinforcing effect of reduced graphene oxide-reinforced aluminum matrix composites. This study utilized vacuum hot-pressing sintering and hot extrusion methods to fabricate rGO/2024Al composite materials and improved the interface bonding of the composite materials through solution treatment and aging. The research results indicate that the tensile strength of the heat-treated composite material increased to 455 MPa, representing a 19% improvement. Appropriate heat treatment processes can aid in enhancing the interfacial structure of composites, augmenting the interfacial bonding strength, and optimizing load transfer efficiency. The reinforcement mechanisms of composites typically include textured strengthening, fine-grained strengthening, and load transfer strengthening. In addition, the rGO can toughen the composites through crack deflection and bridging effects. Therefore, this technique offers a promising route for optimizing properties and improving the interface of aluminum matrix composites reinforced with graphene, via a heat treatment process.
ISSN:0022-2461
1573-4803
DOI:10.1007/s10853-024-09735-w