Aluko, Olalekan Michael and Covenant University, Theses (2022) EFFECT OF SIC-GRAPHITE REINFORCEMENT AND TEMPERATURE ON THE MECHANICAL PROPERTIES OF AA7075 ALUMINIUM ALLOY. Masters thesis, Covenant University Ota.
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Abstract
Most engineering applications benefit greatly from the usage of aluminum composite materials, particularly due to their excellent weight to strength ratio. The mechanical properties of metals like aluminum are said to be the basic prerequisites for their application, this implies that each metal or alloy's industrial and scientific application is governed by its properties. Owing to this important requirement Some aluminum materials have been discovered to be lacking in particular areas as a result of flaws such poor ductility, weak strength, poor thermal conductivity, and difficult to machine. Silicon carbide and graphite were reinforcements on aluminum alloy 7075 using weight percentages of 5 wt and 10 wt. of Sic and graphite constant. Based on its availability, the stir casting process was chosen for the investigation. Twelve distinct samples of the developed composite materials were tempered at five different temperatures from 150°C to 350°C for the reinforced samples, and at the same tempering temperatures for six control samples of the aluminum alloy base material to serve as control. Tensile strength, hardness, toughness, corrosion resistance, and microstructural analyses were all determined from the samples. The results show that the sample with 5 weight percent silicon carbide reinforcement had a fine microstructure and showed the most noticeable improvements in mechanical. It was also observed that as tempering temperature increased, hardness and toughness improved in all reinforced samples. The study has demonstrated the importance of synthetic materials and heat treatment for aluminium composites.
| Item Type: | Thesis (Masters) |
|---|---|
| Uncontrolled Keywords: | Composite, Aluminium, Silicon carbide, Graphite |
| Subjects: | T Technology > T Technology (General) T Technology > TJ Mechanical engineering and machinery |
| Divisions: | Faculty of Engineering, Science and Mathematics > School of Engineering Sciences |
| Depositing User: | nwokealisi |
| Date Deposited: | 07 Sep 2022 16:02 |
| Last Modified: | 07 Sep 2022 16:02 |
| URI: | http://eprints.covenantuniversity.edu.ng/id/eprint/16158 |
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