Study on the Mechanism of CNTs Regulating the Microstructures and Properties of Al–Cu–Mg Alloy
The purpose of this study was to investigate the effect of carbon nanotube addition on the microstructure and mechanical properties of Al–Cu–Mg alloy composites. By analyzing the XRD results, it was deduced that the extruded and heat-treated composites, after the addition of CNTs, were preferentiall...
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| Format: | Article |
| Language: | English |
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MDPI AG
2024-02-01
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| Series: | Crystals |
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| Online Access: | https://www.mdpi.com/2073-4352/14/2/165 |
| _version_ | 1797298505140666368 |
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| author | Yugeng Li Junhao Li Qinglin Jin Zaijiu Li Lu Li Yanhua Sun |
| author_facet | Yugeng Li Junhao Li Qinglin Jin Zaijiu Li Lu Li Yanhua Sun |
| author_sort | Yugeng Li |
| collection | DOAJ |
| description | The purpose of this study was to investigate the effect of carbon nanotube addition on the microstructure and mechanical properties of Al–Cu–Mg alloy composites. By analyzing the XRD results, it was deduced that the extruded and heat-treated composites, after the addition of CNTs, were preferentially grown on the (220) crystal plane. In addition, the distribution of carbon nanotubes at α-Al grain boundaries was observed by SEM and TEM. The incorporation of carbon nanotubes leads to an increase in the degree of recrystallization in the composite. It is worth noting that according to the study of the four strengthening mechanisms of dislocation strengthening, grain refinement strengthening, load transfer strengthening, and second stage strengthening, when the carbon nanotube content is 1.5 wt.%, the tensile strength (480.4 MPa) and yield strength (456.68 MPa) are significantly improved. |
| first_indexed | 2024-03-07T22:36:47Z |
| format | Article |
| id | doaj.art-b44ffc96644647669753aa1cfc4f1ad0 |
| institution | Directory Open Access Journal |
| issn | 2073-4352 |
| language | English |
| last_indexed | 2024-03-07T22:36:47Z |
| publishDate | 2024-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Crystals |
| spelling | doaj.art-b44ffc96644647669753aa1cfc4f1ad02024-02-23T15:13:15ZengMDPI AGCrystals2073-43522024-02-0114216510.3390/cryst14020165Study on the Mechanism of CNTs Regulating the Microstructures and Properties of Al–Cu–Mg AlloyYugeng Li0Junhao Li1Qinglin Jin2Zaijiu Li3Lu Li4Yanhua Sun5Faculty of Material Science and Engineering, Kunming University of Science and Technology, Kunming 650093, ChinaFaculty of Material Science and Engineering, Kunming University of Science and Technology, Kunming 650093, ChinaFaculty of Material Science and Engineering, Kunming University of Science and Technology, Kunming 650093, ChinaFaculty of Material Science and Engineering, Kunming University of Science and Technology, Kunming 650093, ChinaFaculty of Material Science and Engineering, Kunming University of Science and Technology, Kunming 650093, ChinaKunming Metallurgical Research Institute Co., Ltd., Kunming 650000, ChinaThe purpose of this study was to investigate the effect of carbon nanotube addition on the microstructure and mechanical properties of Al–Cu–Mg alloy composites. By analyzing the XRD results, it was deduced that the extruded and heat-treated composites, after the addition of CNTs, were preferentially grown on the (220) crystal plane. In addition, the distribution of carbon nanotubes at α-Al grain boundaries was observed by SEM and TEM. The incorporation of carbon nanotubes leads to an increase in the degree of recrystallization in the composite. It is worth noting that according to the study of the four strengthening mechanisms of dislocation strengthening, grain refinement strengthening, load transfer strengthening, and second stage strengthening, when the carbon nanotube content is 1.5 wt.%, the tensile strength (480.4 MPa) and yield strength (456.68 MPa) are significantly improved.https://www.mdpi.com/2073-4352/14/2/165carbon nanotubesaluminum matrix compositesstrengthening mechanismmicrostructuremechanical properties |
| spellingShingle | Yugeng Li Junhao Li Qinglin Jin Zaijiu Li Lu Li Yanhua Sun Study on the Mechanism of CNTs Regulating the Microstructures and Properties of Al–Cu–Mg Alloy Crystals carbon nanotubes aluminum matrix composites strengthening mechanism microstructure mechanical properties |
| title | Study on the Mechanism of CNTs Regulating the Microstructures and Properties of Al–Cu–Mg Alloy |
| title_full | Study on the Mechanism of CNTs Regulating the Microstructures and Properties of Al–Cu–Mg Alloy |
| title_fullStr | Study on the Mechanism of CNTs Regulating the Microstructures and Properties of Al–Cu–Mg Alloy |
| title_full_unstemmed | Study on the Mechanism of CNTs Regulating the Microstructures and Properties of Al–Cu–Mg Alloy |
| title_short | Study on the Mechanism of CNTs Regulating the Microstructures and Properties of Al–Cu–Mg Alloy |
| title_sort | study on the mechanism of cnts regulating the microstructures and properties of al cu mg alloy |
| topic | carbon nanotubes aluminum matrix composites strengthening mechanism microstructure mechanical properties |
| url | https://www.mdpi.com/2073-4352/14/2/165 |
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