Development and Mechanical Characterisation of Al6061-Al<sub>2</sub>O<sub>3</sub>-Graphene Hybrid Metal Matrix Composites
MMC based on aluminium (Al) were produced for light-weight applications especially in aviation and automobile areas. Present paper deals with the fabrication and mechanical performance of AA6061 matrix composites fortified with Al<sub>2</sub>O<sub>3</sub> (alumina) and graphe...
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2021-06-01
|
| Series: | Journal of Composites Science |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2504-477X/5/6/155 |
| _version_ | 1797530647585095680 |
|---|---|
| author | Satish Babu Boppana Samuel Dayanand Bharath Vedashantha Murthy Madeva Nagaral Aravinda Telagu Vijee Kumar Virupaxi Auradi |
| author_facet | Satish Babu Boppana Samuel Dayanand Bharath Vedashantha Murthy Madeva Nagaral Aravinda Telagu Vijee Kumar Virupaxi Auradi |
| author_sort | Satish Babu Boppana |
| collection | DOAJ |
| description | MMC based on aluminium (Al) were produced for light-weight applications especially in aviation and automobile areas. Present paper deals with the fabrication and mechanical performance of AA6061 matrix composites fortified with Al<sub>2</sub>O<sub>3</sub> (alumina) and graphene particulates. Fluid metallurgy method namely stir casting route was employed for fabricating the hybrid composites. Al<sub>2</sub>O<sub>3p</sub> and graphene powder are mixed in different weight fractions in which graphene (1 wt. %) particle reinforcement is held consistent and Al<sub>2</sub>O<sub>3</sub> reinforcement is differed freely with 5, 10 and 15 wt. %. Using optical analyser and SEM equipment, microstructural examination is carried out and the result reveals that the graphene and Al<sub>2</sub>O<sub>3</sub> particles prevalently are homogeneously appropriated on the grain limits of Al matrix and Al<sub>2</sub>O<sub>3</sub> particles are disseminated between graphene in the as-cast AA6061 MMC’s. Detailed analysis on investigation of the microstructure and mechanical aspects of Al6061-graphene-Al<sub>2</sub>O<sub>3p</sub> composites is presented by following ASTM guidelines; results uncovered that with increment in reinforcement particles, there is an enhancement in the hardness, ultimate strength, yield strength and a decline in the elongation values was however noticed when contrasted with Al6061 alloy. Fractography investigation revealed dimples in unreinforced alloy and the composite. |
| first_indexed | 2024-03-10T10:32:59Z |
| format | Article |
| id | doaj.art-2c24a0984b754f79a8c4e69a92aaed72 |
| institution | Directory Open Access Journal |
| issn | 2504-477X |
| language | English |
| last_indexed | 2024-03-10T10:32:59Z |
| publishDate | 2021-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Journal of Composites Science |
| spelling | doaj.art-2c24a0984b754f79a8c4e69a92aaed722023-11-21T23:30:16ZengMDPI AGJournal of Composites Science2504-477X2021-06-015615510.3390/jcs5060155Development and Mechanical Characterisation of Al6061-Al<sub>2</sub>O<sub>3</sub>-Graphene Hybrid Metal Matrix CompositesSatish Babu Boppana0Samuel Dayanand1Bharath Vedashantha Murthy2Madeva Nagaral3Aravinda Telagu4Vijee Kumar5Virupaxi Auradi6Department of Mechanical Engineering, School of Engineering, Presidency University, Bengaluru 560064, IndiaDepartment of Mechanical Engineering, Government Engineering College, Raichur 584101, IndiaDepartment of Mechanical Engineering, KNS Institute of Technology, Visvesvaraya Technological University, Bangalore 560064, IndiaAircraft Research and Design Centre, HAL, Bangalore 560037, IndiaDepartment of Mechanical Engineering, School of Engineering, Presidency University, Bengaluru 560064, IndiaSchool of Mechanical Engineering, REVA University, Bengaluru 560063, IndiaDepartment of Mechanical Engineering, Siddaganga Institute of Technology, Visvesvaraya Technological University, Tumakuru 572103, IndiaMMC based on aluminium (Al) were produced for light-weight applications especially in aviation and automobile areas. Present paper deals with the fabrication and mechanical performance of AA6061 matrix composites fortified with Al<sub>2</sub>O<sub>3</sub> (alumina) and graphene particulates. Fluid metallurgy method namely stir casting route was employed for fabricating the hybrid composites. Al<sub>2</sub>O<sub>3p</sub> and graphene powder are mixed in different weight fractions in which graphene (1 wt. %) particle reinforcement is held consistent and Al<sub>2</sub>O<sub>3</sub> reinforcement is differed freely with 5, 10 and 15 wt. %. Using optical analyser and SEM equipment, microstructural examination is carried out and the result reveals that the graphene and Al<sub>2</sub>O<sub>3</sub> particles prevalently are homogeneously appropriated on the grain limits of Al matrix and Al<sub>2</sub>O<sub>3</sub> particles are disseminated between graphene in the as-cast AA6061 MMC’s. Detailed analysis on investigation of the microstructure and mechanical aspects of Al6061-graphene-Al<sub>2</sub>O<sub>3p</sub> composites is presented by following ASTM guidelines; results uncovered that with increment in reinforcement particles, there is an enhancement in the hardness, ultimate strength, yield strength and a decline in the elongation values was however noticed when contrasted with Al6061 alloy. Fractography investigation revealed dimples in unreinforced alloy and the composite.https://www.mdpi.com/2504-477X/5/6/155metal matrix compositesAl<sub>2</sub>O<sub>3</sub>graphenemechanical propertiesfractography |
| spellingShingle | Satish Babu Boppana Samuel Dayanand Bharath Vedashantha Murthy Madeva Nagaral Aravinda Telagu Vijee Kumar Virupaxi Auradi Development and Mechanical Characterisation of Al6061-Al<sub>2</sub>O<sub>3</sub>-Graphene Hybrid Metal Matrix Composites Journal of Composites Science metal matrix composites Al<sub>2</sub>O<sub>3</sub> graphene mechanical properties fractography |
| title | Development and Mechanical Characterisation of Al6061-Al<sub>2</sub>O<sub>3</sub>-Graphene Hybrid Metal Matrix Composites |
| title_full | Development and Mechanical Characterisation of Al6061-Al<sub>2</sub>O<sub>3</sub>-Graphene Hybrid Metal Matrix Composites |
| title_fullStr | Development and Mechanical Characterisation of Al6061-Al<sub>2</sub>O<sub>3</sub>-Graphene Hybrid Metal Matrix Composites |
| title_full_unstemmed | Development and Mechanical Characterisation of Al6061-Al<sub>2</sub>O<sub>3</sub>-Graphene Hybrid Metal Matrix Composites |
| title_short | Development and Mechanical Characterisation of Al6061-Al<sub>2</sub>O<sub>3</sub>-Graphene Hybrid Metal Matrix Composites |
| title_sort | development and mechanical characterisation of al6061 al sub 2 sub o sub 3 sub graphene hybrid metal matrix composites |
| topic | metal matrix composites Al<sub>2</sub>O<sub>3</sub> graphene mechanical properties fractography |
| url | https://www.mdpi.com/2504-477X/5/6/155 |
| work_keys_str_mv | AT satishbabuboppana developmentandmechanicalcharacterisationofal6061alsub2subosub3subgraphenehybridmetalmatrixcomposites AT samueldayanand developmentandmechanicalcharacterisationofal6061alsub2subosub3subgraphenehybridmetalmatrixcomposites AT bharathvedashanthamurthy developmentandmechanicalcharacterisationofal6061alsub2subosub3subgraphenehybridmetalmatrixcomposites AT madevanagaral developmentandmechanicalcharacterisationofal6061alsub2subosub3subgraphenehybridmetalmatrixcomposites AT aravindatelagu developmentandmechanicalcharacterisationofal6061alsub2subosub3subgraphenehybridmetalmatrixcomposites AT vijeekumar developmentandmechanicalcharacterisationofal6061alsub2subosub3subgraphenehybridmetalmatrixcomposites AT virupaxiauradi developmentandmechanicalcharacterisationofal6061alsub2subosub3subgraphenehybridmetalmatrixcomposites |