A Novel Al–Cu Composite with Ultra‐High Strength at 350 °C via Dual‐Phase Particle Reinforced Submicron‐Structure
Abstract Thermal stability determines a material's ability to maintain its performance at desired service temperatures. This is especially important for aluminum (Al) alloys, which are widely used in the commercial sector. Herein, an ultra‐strong and heat‐resistant Al‐Cu composite is fabricated...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2023-09-01
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| Series: | Advanced Science |
| Subjects: | |
| Online Access: | https://doi.org/10.1002/advs.202207208 |
| _version_ | 1797692672097386496 |
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| author | Kewei Xie Jinfeng Nie Chang Liu Wenhao Cha Ge Wu Xiangfa Liu Sida Liu |
| author_facet | Kewei Xie Jinfeng Nie Chang Liu Wenhao Cha Ge Wu Xiangfa Liu Sida Liu |
| author_sort | Kewei Xie |
| collection | DOAJ |
| description | Abstract Thermal stability determines a material's ability to maintain its performance at desired service temperatures. This is especially important for aluminum (Al) alloys, which are widely used in the commercial sector. Herein, an ultra‐strong and heat‐resistant Al‐Cu composite is fabricated with a structure of nano‐AlN and submicron‐Al2O3 particles uniformly distributed in the matrix. At 350 °C, the (8.2AlN+1Al2O3)p/Al‐0.9Cu composite achieves a high strength of 187 MPa along with a 4.6% ductility under tension. The high strength and good ductility benefit from strong pinning effect on dislocation motion and grain boundary sliding by uniform dispersion of nano‐AlN particles, in conjunction with the precipitation of Guinier–Preston (GP) zones, enhancing strain hardening capacity during plastic deformation. This work can expand the selection of Al–Cu composites for potential applications at service temperatures as high as ≈350 °C. |
| first_indexed | 2024-03-12T02:31:58Z |
| format | Article |
| id | doaj.art-803b0df9a3c4484fa3e396d29ce4bd7d |
| institution | Directory Open Access Journal |
| issn | 2198-3844 |
| language | English |
| last_indexed | 2024-03-12T02:31:58Z |
| publishDate | 2023-09-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advanced Science |
| spelling | doaj.art-803b0df9a3c4484fa3e396d29ce4bd7d2023-09-05T07:49:09ZengWileyAdvanced Science2198-38442023-09-011025n/an/a10.1002/advs.202207208A Novel Al–Cu Composite with Ultra‐High Strength at 350 °C via Dual‐Phase Particle Reinforced Submicron‐StructureKewei Xie0Jinfeng Nie1Chang Liu2Wenhao Cha3Ge Wu4Xiangfa Liu5Sida Liu6Key Laboratory for Liquid‐Solid Structural Evolution and Processing of Materials Ministry of Education Shandong University Jinan 250061ChinaNano and Heterogeneous Materials Center School of Materials Science and Engineering Nanjing University of Science and Technology Nanjing 210094ChinaCenter for Alloy Innovation and Design (CAID) State Key Laboratory for Mechanical Behavior of Materials Xi'an Jiaotong University Xi'an 710049ChinaFaculty of Georesources and Materials Engineering RWTH Aachen University 52056 Aachen GermanyCenter for Advancing Materials Performance from the Nanoscale and Hysitron Applied Research Center in China State Key Laboratory for Mechanical Behavior of Materials Xi'an Jiaotong University Xi'an 710049ChinaKey Laboratory for Liquid‐Solid Structural Evolution and Processing of Materials Ministry of Education Shandong University Jinan 250061ChinaLaboratory for multiscale mechanics and medical science SV LAB School of Aerospace Xi'an Jiaotong University Xi'an 710049ChinaAbstract Thermal stability determines a material's ability to maintain its performance at desired service temperatures. This is especially important for aluminum (Al) alloys, which are widely used in the commercial sector. Herein, an ultra‐strong and heat‐resistant Al‐Cu composite is fabricated with a structure of nano‐AlN and submicron‐Al2O3 particles uniformly distributed in the matrix. At 350 °C, the (8.2AlN+1Al2O3)p/Al‐0.9Cu composite achieves a high strength of 187 MPa along with a 4.6% ductility under tension. The high strength and good ductility benefit from strong pinning effect on dislocation motion and grain boundary sliding by uniform dispersion of nano‐AlN particles, in conjunction with the precipitation of Guinier–Preston (GP) zones, enhancing strain hardening capacity during plastic deformation. This work can expand the selection of Al–Cu composites for potential applications at service temperatures as high as ≈350 °C.https://doi.org/10.1002/advs.202207208aluminum matrix compositesGuinier–Preston zoneshigh‐temperature strengthnano‐AlN particlessubmicron‐Al2O3 particles |
| spellingShingle | Kewei Xie Jinfeng Nie Chang Liu Wenhao Cha Ge Wu Xiangfa Liu Sida Liu A Novel Al–Cu Composite with Ultra‐High Strength at 350 °C via Dual‐Phase Particle Reinforced Submicron‐Structure Advanced Science aluminum matrix composites Guinier–Preston zones high‐temperature strength nano‐AlN particles submicron‐Al2O3 particles |
| title | A Novel Al–Cu Composite with Ultra‐High Strength at 350 °C via Dual‐Phase Particle Reinforced Submicron‐Structure |
| title_full | A Novel Al–Cu Composite with Ultra‐High Strength at 350 °C via Dual‐Phase Particle Reinforced Submicron‐Structure |
| title_fullStr | A Novel Al–Cu Composite with Ultra‐High Strength at 350 °C via Dual‐Phase Particle Reinforced Submicron‐Structure |
| title_full_unstemmed | A Novel Al–Cu Composite with Ultra‐High Strength at 350 °C via Dual‐Phase Particle Reinforced Submicron‐Structure |
| title_short | A Novel Al–Cu Composite with Ultra‐High Strength at 350 °C via Dual‐Phase Particle Reinforced Submicron‐Structure |
| title_sort | novel al cu composite with ultra high strength at 350 °c via dual phase particle reinforced submicron structure |
| topic | aluminum matrix composites Guinier–Preston zones high‐temperature strength nano‐AlN particles submicron‐Al2O3 particles |
| url | https://doi.org/10.1002/advs.202207208 |
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