Mechanical characterization and analysis of tensile fracture modes of ultrasonically stir cast Al6082 composites reinforced with Cu powder premixed Metakaolin particles
The major drawback observed in the ceramic particles reinforced aluminium matrix composites (AMCs) is the reduction of ductility. Incorporating fine metallic particles along with the ceramic reinforcements in the aluminium matrix tends to improve the ductility of the AMCs. This work highlights the...
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Gruppo Italiano Frattura
2022-09-01
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| Series: | Frattura ed Integrità Strutturale |
| Subjects: | |
| Online Access: | https://3.64.71.86/index.php/fis/article/view/3658 |
| _version_ | 1798021036708462592 |
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| author | Renjin J Bright P. Hariharasakthisudhan |
| author_facet | Renjin J Bright P. Hariharasakthisudhan |
| author_sort | Renjin J Bright |
| collection | DOAJ |
| description |
The major drawback observed in the ceramic particles reinforced aluminium matrix composites (AMCs) is the reduction of ductility. Incorporating fine metallic particles along with the ceramic reinforcements in the aluminium matrix tends to improve the ductility of the AMCs. This work highlights the effects of dispersing micro (5-10 μm) copper (Cu) particles along with the nano (100-400 nm) Metakaolin particles in the Al6082 matrix. The Metakaolin particles were premixed with Cu powder by means of manual stirring followed by ball milling before embedding into the Al6082 matrix. The total reinforcement composition was maintained as 7.5 wt.% in which 2.5 wt.% consisted of Cu powder. The composites were synthesized using ultrasonication-aided stir casting process. The composites samples were subjected to T6 heat treatment before performing mechanical characterization. The composites with Cu powder premixed Metakaolin particles showed improvement in tensile strength, ductility, compressive strength and hardness. The microstructure evaluation of the composites was performed by Scanning Electron Microscope (SEM) and Optical Microscope (OM). The tensile fracture modes were studied by analysing the fracture surface morphology using SEM.
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| first_indexed | 2024-04-11T17:07:28Z |
| format | Article |
| id | doaj.art-f06a79d772d142bba806413a80559379 |
| institution | Directory Open Access Journal |
| issn | 1971-8993 |
| language | English |
| last_indexed | 2024-04-11T17:07:28Z |
| publishDate | 2022-09-01 |
| publisher | Gruppo Italiano Frattura |
| record_format | Article |
| series | Frattura ed Integrità Strutturale |
| spelling | doaj.art-f06a79d772d142bba806413a805593792022-12-22T04:13:00ZengGruppo Italiano FratturaFrattura ed Integrità Strutturale1971-89932022-09-011662Mechanical characterization and analysis of tensile fracture modes of ultrasonically stir cast Al6082 composites reinforced with Cu powder premixed Metakaolin particles Renjin J Bright0P. Hariharasakthisudhan1Department of Production Engineering, PSG College of Technology, Coimbatore, Tamil Nadu-641004, IndiaDepartment of Mechanical Engineering, Sri Krishna College of Technology, Coimbatore-641042, Tamil Nadu, India The major drawback observed in the ceramic particles reinforced aluminium matrix composites (AMCs) is the reduction of ductility. Incorporating fine metallic particles along with the ceramic reinforcements in the aluminium matrix tends to improve the ductility of the AMCs. This work highlights the effects of dispersing micro (5-10 μm) copper (Cu) particles along with the nano (100-400 nm) Metakaolin particles in the Al6082 matrix. The Metakaolin particles were premixed with Cu powder by means of manual stirring followed by ball milling before embedding into the Al6082 matrix. The total reinforcement composition was maintained as 7.5 wt.% in which 2.5 wt.% consisted of Cu powder. The composites were synthesized using ultrasonication-aided stir casting process. The composites samples were subjected to T6 heat treatment before performing mechanical characterization. The composites with Cu powder premixed Metakaolin particles showed improvement in tensile strength, ductility, compressive strength and hardness. The microstructure evaluation of the composites was performed by Scanning Electron Microscope (SEM) and Optical Microscope (OM). The tensile fracture modes were studied by analysing the fracture surface morphology using SEM. https://3.64.71.86/index.php/fis/article/view/3658Aluminium matrix compositesFracture surfaceStir castingCu powderTensile strengthDuctility |
| spellingShingle | Renjin J Bright P. Hariharasakthisudhan Mechanical characterization and analysis of tensile fracture modes of ultrasonically stir cast Al6082 composites reinforced with Cu powder premixed Metakaolin particles Frattura ed Integrità Strutturale Aluminium matrix composites Fracture surface Stir casting Cu powder Tensile strength Ductility |
| title | Mechanical characterization and analysis of tensile fracture modes of ultrasonically stir cast Al6082 composites reinforced with Cu powder premixed Metakaolin particles |
| title_full | Mechanical characterization and analysis of tensile fracture modes of ultrasonically stir cast Al6082 composites reinforced with Cu powder premixed Metakaolin particles |
| title_fullStr | Mechanical characterization and analysis of tensile fracture modes of ultrasonically stir cast Al6082 composites reinforced with Cu powder premixed Metakaolin particles |
| title_full_unstemmed | Mechanical characterization and analysis of tensile fracture modes of ultrasonically stir cast Al6082 composites reinforced with Cu powder premixed Metakaolin particles |
| title_short | Mechanical characterization and analysis of tensile fracture modes of ultrasonically stir cast Al6082 composites reinforced with Cu powder premixed Metakaolin particles |
| title_sort | mechanical characterization and analysis of tensile fracture modes of ultrasonically stir cast al6082 composites reinforced with cu powder premixed metakaolin particles |
| topic | Aluminium matrix composites Fracture surface Stir casting Cu powder Tensile strength Ductility |
| url | https://3.64.71.86/index.php/fis/article/view/3658 |
| work_keys_str_mv | AT renjinjbright mechanicalcharacterizationandanalysisoftensilefracturemodesofultrasonicallystircastal6082compositesreinforcedwithcupowderpremixedmetakaolinparticles AT phariharasakthisudhan mechanicalcharacterizationandanalysisoftensilefracturemodesofultrasonicallystircastal6082compositesreinforcedwithcupowderpremixedmetakaolinparticles |