Governing high-content nanoparticles distribution for architecting high-performance bamboo-structured 2024Al matrix composites
Fabricating high-content nanoparticle-reinforced aluminum matrix composites with balanced modulus–strength–ductility has been a long-standing challenge. Inspired by natural biostructures, an inversed bamboo configuration combined with high-content nano-dispersoids was proposed, featuring fiber-like...
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| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Taylor & Francis Group
2025-08-01
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| Series: | Materials Research Letters |
| Subjects: | |
| Online Access: | https://www.tandfonline.com/doi/10.1080/21663831.2025.2521051 |
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| Summary: | Fabricating high-content nanoparticle-reinforced aluminum matrix composites with balanced modulus–strength–ductility has been a long-standing challenge. Inspired by natural biostructures, an inversed bamboo configuration combined with high-content nano-dispersoids was proposed, featuring fiber-like soft bands embedded into hard matrix and exhibiting 94.88 GPa in Young’s modulus, 709 MPa in yield strength and 7.21% in elongation. The sustained strain hardening behavior led to an improved uniform elongation even at such high stress levels. The underlying mechanisms for superior mechanical properties include biostructural hetero-deformation induced (HDI) strengthening/hardening, intragranular nano-dispersoids enhanced dislocation storage of ultrafine grains and SiC/Al interfaces induced stacking faults. |
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| ISSN: | 2166-3831 |