Improvement of microstructure and mechanical properties for Al7075 aluminium reinforced with hybrid graphite and SiC particles via a combination of mechanical alloying and stir casting
This research focuses on the fabrication of Al7075 composites reinforced with varying amounts of nano-sized SiC particles (1.0, 1.5, and 2.0 wt%) combined with 0.5 wt% graphite (Gr), employing a hybrid process of mechanical alloying and semi-solid stir casting. The study investigates the influence o...
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| Format: | Article |
| Language: | English |
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IOP Publishing
2025-01-01
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| Series: | Materials Research Express |
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| Online Access: | https://doi.org/10.1088/2053-1591/ada5b8 |
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| author | Charinrat Potisawang Sukangkana Talangkun Kowit Ponhan |
| author_facet | Charinrat Potisawang Sukangkana Talangkun Kowit Ponhan |
| author_sort | Charinrat Potisawang |
| collection | DOAJ |
| description | This research focuses on the fabrication of Al7075 composites reinforced with varying amounts of nano-sized SiC particles (1.0, 1.5, and 2.0 wt%) combined with 0.5 wt% graphite (Gr), employing a hybrid process of mechanical alloying and semi-solid stir casting. The study investigates the influence of SiC content, nanoparticle feeding method, and the role of Gr on the microstructures, mechanical characteristics, and machinability of the composites. Microstructural analysis revealed that integrating milled powders into the molten Al7075 alloy produced a uniform dispersion of nanoscale SiC particles within the α -Al matrix, avoiding the particle agglomeration observed with the conventional method. Higher SiC content resulted in finer grains and improved mechanical performance. The Al7075-0.5Gr-2.0SiC composite exhibited a 16% increase in hardness relative to the unreinforced Al7075 alloy. The inclusion of nanoscale SiC particles notably enhanced tensile strength, while the presence of Gr acted as a lubricant, improving surface roughness. |
| format | Article |
| id | doaj-art-ed42e0d710c841bfa524a86c5074c240 |
| institution | Kabale University |
| issn | 2053-1591 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | Materials Research Express |
| spelling | doaj-art-ed42e0d710c841bfa524a86c5074c2402025-01-16T16:43:20ZengIOP PublishingMaterials Research Express2053-15912025-01-0112101650910.1088/2053-1591/ada5b8Improvement of microstructure and mechanical properties for Al7075 aluminium reinforced with hybrid graphite and SiC particles via a combination of mechanical alloying and stir castingCharinrat Potisawang0https://orcid.org/0009-0009-7087-3361Sukangkana Talangkun1https://orcid.org/0000-0002-5028-3075Kowit Ponhan2https://orcid.org/0000-0002-6933-0951Department of Industrial Engineering, Faculty of Engineering, Khon Kaen University , Khon Kaen 40002, ThailandDepartment of Industrial Engineering, Faculty of Engineering, Khon Kaen University , Khon Kaen 40002, ThailandDepartment of Industrial Engineering, Faculty of Engineering, Khon Kaen University , Khon Kaen 40002, ThailandThis research focuses on the fabrication of Al7075 composites reinforced with varying amounts of nano-sized SiC particles (1.0, 1.5, and 2.0 wt%) combined with 0.5 wt% graphite (Gr), employing a hybrid process of mechanical alloying and semi-solid stir casting. The study investigates the influence of SiC content, nanoparticle feeding method, and the role of Gr on the microstructures, mechanical characteristics, and machinability of the composites. Microstructural analysis revealed that integrating milled powders into the molten Al7075 alloy produced a uniform dispersion of nanoscale SiC particles within the α -Al matrix, avoiding the particle agglomeration observed with the conventional method. Higher SiC content resulted in finer grains and improved mechanical performance. The Al7075-0.5Gr-2.0SiC composite exhibited a 16% increase in hardness relative to the unreinforced Al7075 alloy. The inclusion of nanoscale SiC particles notably enhanced tensile strength, while the presence of Gr acted as a lubricant, improving surface roughness.https://doi.org/10.1088/2053-1591/ada5b8aluminium matrix compositemechanical alloyingstir castingmechanical propertymicrostructure |
| spellingShingle | Charinrat Potisawang Sukangkana Talangkun Kowit Ponhan Improvement of microstructure and mechanical properties for Al7075 aluminium reinforced with hybrid graphite and SiC particles via a combination of mechanical alloying and stir casting Materials Research Express aluminium matrix composite mechanical alloying stir casting mechanical property microstructure |
| title | Improvement of microstructure and mechanical properties for Al7075 aluminium reinforced with hybrid graphite and SiC particles via a combination of mechanical alloying and stir casting |
| title_full | Improvement of microstructure and mechanical properties for Al7075 aluminium reinforced with hybrid graphite and SiC particles via a combination of mechanical alloying and stir casting |
| title_fullStr | Improvement of microstructure and mechanical properties for Al7075 aluminium reinforced with hybrid graphite and SiC particles via a combination of mechanical alloying and stir casting |
| title_full_unstemmed | Improvement of microstructure and mechanical properties for Al7075 aluminium reinforced with hybrid graphite and SiC particles via a combination of mechanical alloying and stir casting |
| title_short | Improvement of microstructure and mechanical properties for Al7075 aluminium reinforced with hybrid graphite and SiC particles via a combination of mechanical alloying and stir casting |
| title_sort | improvement of microstructure and mechanical properties for al7075 aluminium reinforced with hybrid graphite and sic particles via a combination of mechanical alloying and stir casting |
| topic | aluminium matrix composite mechanical alloying stir casting mechanical property microstructure |
| url | https://doi.org/10.1088/2053-1591/ada5b8 |
| work_keys_str_mv | AT charinratpotisawang improvementofmicrostructureandmechanicalpropertiesforal7075aluminiumreinforcedwithhybridgraphiteandsicparticlesviaacombinationofmechanicalalloyingandstircasting AT sukangkanatalangkun improvementofmicrostructureandmechanicalpropertiesforal7075aluminiumreinforcedwithhybridgraphiteandsicparticlesviaacombinationofmechanicalalloyingandstircasting AT kowitponhan improvementofmicrostructureandmechanicalpropertiesforal7075aluminiumreinforcedwithhybridgraphiteandsicparticlesviaacombinationofmechanicalalloyingandstircasting |