Microstructure, mechanical and fracture properties of groundnut shell ash and silicon carbide dispersion strengthened aluminium matrix composites
The mechanical properties of aluminium hybrid composites reinforced with groundnut shell ash (GSA) and silicon carbide was investigated. GSA and silicon carbide with different mix ratios (10:0, 7.5:2.5, 5.0:5.0, 2.5:7.5 and 0:10) constituted 6 and 10 wt.% of the reinforcing phase, while the matrix m...
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| Format: | Article |
| Language: | English |
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Elsevier
2018-01-01
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| Series: | Journal of King Saud University: Engineering Sciences |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S1018363916000052 |
| _version_ | 1818534442049732608 |
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| author | Kenneth Kanayo Alaneme Michael Oluwatosin Bodunrin Adebimpe A. Awe |
| author_facet | Kenneth Kanayo Alaneme Michael Oluwatosin Bodunrin Adebimpe A. Awe |
| author_sort | Kenneth Kanayo Alaneme |
| collection | DOAJ |
| description | The mechanical properties of aluminium hybrid composites reinforced with groundnut shell ash (GSA) and silicon carbide was investigated. GSA and silicon carbide with different mix ratios (10:0, 7.5:2.5, 5.0:5.0, 2.5:7.5 and 0:10) constituted 6 and 10 wt.% of the reinforcing phase, while the matrix material was Al–Mg–Si alloy. The hybrid composites were produced via a two-step stir casting technique. Microstructural examination, hardness, tensile and fracture toughness testing were carried out to appraise the mechanical properties of the composites. The results show that with increasing GSA in the reinforcing phase, the hardness, ultimate tensile strength (UTS) and specific strength of the composites decreased slightly for both 6 and 10 wt.% reinforced Al–Mg–Si based composites owing to the amount of the oxides of Al, Si, Ca, K2 and Mg present in the composition of GSA. However, the percentage elongation improved marginally and was generally invariant to increasing GSA content while the fracture toughness increased with increasing GSA content. GSA offered a favourable influence on the mechanical properties of Al–Mg–Si hybrid composites comparable to that of rice husk ash and bamboo leaf ash. |
| first_indexed | 2024-12-11T18:11:41Z |
| format | Article |
| id | doaj.art-646fe6bf88794de596b732814ddfea31 |
| institution | Directory Open Access Journal |
| issn | 1018-3639 |
| language | English |
| last_indexed | 2024-12-11T18:11:41Z |
| publishDate | 2018-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of King Saud University: Engineering Sciences |
| spelling | doaj.art-646fe6bf88794de596b732814ddfea312022-12-22T00:55:33ZengElsevierJournal of King Saud University: Engineering Sciences1018-36392018-01-013019610310.1016/j.jksues.2016.01.001Microstructure, mechanical and fracture properties of groundnut shell ash and silicon carbide dispersion strengthened aluminium matrix compositesKenneth Kanayo Alaneme0Michael Oluwatosin Bodunrin1Adebimpe A. Awe2Department of Metallurgical and Materials Engineering, Federal University of Technology, Akure PMB 704, NigeriaDepartment of Metallurgical and Materials Engineering, Federal University of Technology, Akure PMB 704, NigeriaDepartment of Metallurgical and Materials Engineering, Federal University of Technology, Akure PMB 704, NigeriaThe mechanical properties of aluminium hybrid composites reinforced with groundnut shell ash (GSA) and silicon carbide was investigated. GSA and silicon carbide with different mix ratios (10:0, 7.5:2.5, 5.0:5.0, 2.5:7.5 and 0:10) constituted 6 and 10 wt.% of the reinforcing phase, while the matrix material was Al–Mg–Si alloy. The hybrid composites were produced via a two-step stir casting technique. Microstructural examination, hardness, tensile and fracture toughness testing were carried out to appraise the mechanical properties of the composites. The results show that with increasing GSA in the reinforcing phase, the hardness, ultimate tensile strength (UTS) and specific strength of the composites decreased slightly for both 6 and 10 wt.% reinforced Al–Mg–Si based composites owing to the amount of the oxides of Al, Si, Ca, K2 and Mg present in the composition of GSA. However, the percentage elongation improved marginally and was generally invariant to increasing GSA content while the fracture toughness increased with increasing GSA content. GSA offered a favourable influence on the mechanical properties of Al–Mg–Si hybrid composites comparable to that of rice husk ash and bamboo leaf ash.http://www.sciencedirect.com/science/article/pii/S1018363916000052Aluminium hybrid compositesStir castingGroundnut shell ashMechanical propertiesAgro wastesSilicon carbide |
| spellingShingle | Kenneth Kanayo Alaneme Michael Oluwatosin Bodunrin Adebimpe A. Awe Microstructure, mechanical and fracture properties of groundnut shell ash and silicon carbide dispersion strengthened aluminium matrix composites Journal of King Saud University: Engineering Sciences Aluminium hybrid composites Stir casting Groundnut shell ash Mechanical properties Agro wastes Silicon carbide |
| title | Microstructure, mechanical and fracture properties of groundnut shell ash and silicon carbide dispersion strengthened aluminium matrix composites |
| title_full | Microstructure, mechanical and fracture properties of groundnut shell ash and silicon carbide dispersion strengthened aluminium matrix composites |
| title_fullStr | Microstructure, mechanical and fracture properties of groundnut shell ash and silicon carbide dispersion strengthened aluminium matrix composites |
| title_full_unstemmed | Microstructure, mechanical and fracture properties of groundnut shell ash and silicon carbide dispersion strengthened aluminium matrix composites |
| title_short | Microstructure, mechanical and fracture properties of groundnut shell ash and silicon carbide dispersion strengthened aluminium matrix composites |
| title_sort | microstructure mechanical and fracture properties of groundnut shell ash and silicon carbide dispersion strengthened aluminium matrix composites |
| topic | Aluminium hybrid composites Stir casting Groundnut shell ash Mechanical properties Agro wastes Silicon carbide |
| url | http://www.sciencedirect.com/science/article/pii/S1018363916000052 |
| work_keys_str_mv | AT kennethkanayoalaneme microstructuremechanicalandfracturepropertiesofgroundnutshellashandsiliconcarbidedispersionstrengthenedaluminiummatrixcomposites AT michaeloluwatosinbodunrin microstructuremechanicalandfracturepropertiesofgroundnutshellashandsiliconcarbidedispersionstrengthenedaluminiummatrixcomposites AT adebimpeaawe microstructuremechanicalandfracturepropertiesofgroundnutshellashandsiliconcarbidedispersionstrengthenedaluminiummatrixcomposites |