Electrochemical investigation of the corrosion susceptibility of hybrid reinforced Al6063 with SiC and PKSA in 1.0 M sulfuric acid environment
Abstract The recycling of agro‐waste as complementary reinforcements has received significant recognition in the development of aluminium matrix composites. Hence, this study examines the corrosion behavior of Al6063 reinforced with hybrid SiC/PKSA (palm kernel shell ash) particles. Through various...
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| Format: | Article |
| Language: | English |
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Wiley
2024-03-01
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| Series: | Engineering Reports |
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| Online Access: | https://doi.org/10.1002/eng2.12733 |
| _version_ | 1797279341089914880 |
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| author | Peter Pelumi Ikubanni Makanjuola Oki Adekunle Akanni Adeleke Akintunde Sunday Onaolapo Prabhu Paramasivam |
| author_facet | Peter Pelumi Ikubanni Makanjuola Oki Adekunle Akanni Adeleke Akintunde Sunday Onaolapo Prabhu Paramasivam |
| author_sort | Peter Pelumi Ikubanni |
| collection | DOAJ |
| description | Abstract The recycling of agro‐waste as complementary reinforcements has received significant recognition in the development of aluminium matrix composites. Hence, this study examines the corrosion behavior of Al6063 reinforced with hybrid SiC/PKSA (palm kernel shell ash) particles. Through various ratios of SiC and PKSA particles in Al6063 alloy, composites were fabricated by double stir casting. Samples were cut and metallographically prepared for 1 M H2SO4 solution corrosion experiments. Gravimetric, potentiodynamic polarization and electrochemical impedance spectroscopic analyses were employed. The composites corroded initially at relatively high rates, gradually declining during long immersion times in the acidic solution. The intersection of reinforcements at the general surfaces of the composites where flawed oxide skins predominate acted as active sites for corrosion initiation. From potentiodynamic polarization studies, the corrosion currents increased with time for all specimens, with A9 being 1075.65 μA/cm2 at 72 h as against 857.99 μA/cm2 at 24 h of measurement. The corrosion potentials for all the specimens hovered around −654.00 to −647.22 mV. Bode plots revealed similar electrochemical reactions over all the substrates' surfaces. The relative corrosion resistance by the specimen depends on the oxide films' nature as the cathodic interfacial reinforcements dropped off into the acidic environment. |
| first_indexed | 2024-03-07T16:23:54Z |
| format | Article |
| id | doaj.art-af28adf6264944d59190ec9ec44b16b6 |
| institution | Directory Open Access Journal |
| issn | 2577-8196 |
| language | English |
| last_indexed | 2024-03-07T16:23:54Z |
| publishDate | 2024-03-01 |
| publisher | Wiley |
| record_format | Article |
| series | Engineering Reports |
| spelling | doaj.art-af28adf6264944d59190ec9ec44b16b62024-03-04T01:40:40ZengWileyEngineering Reports2577-81962024-03-0163n/an/a10.1002/eng2.12733Electrochemical investigation of the corrosion susceptibility of hybrid reinforced Al6063 with SiC and PKSA in 1.0 M sulfuric acid environmentPeter Pelumi Ikubanni0Makanjuola Oki1Adekunle Akanni Adeleke2Akintunde Sunday Onaolapo3Prabhu Paramasivam4Department of Mechanical Engineering, College of Engineering Landmark University Omu‐Aran NigeriaDepartment of Mechanical Engineering, College of Engineering Landmark University Omu‐Aran NigeriaDepartment of Mechanical Engineering Nile University of Nigeria Abuja NigeriaDepartment of Chemical Sciences Thomas Adewumi University Oko NigeriaDepartment of Mechanical Engineering, College of Engineering and Technology Mattu University Mettu EthiopiaAbstract The recycling of agro‐waste as complementary reinforcements has received significant recognition in the development of aluminium matrix composites. Hence, this study examines the corrosion behavior of Al6063 reinforced with hybrid SiC/PKSA (palm kernel shell ash) particles. Through various ratios of SiC and PKSA particles in Al6063 alloy, composites were fabricated by double stir casting. Samples were cut and metallographically prepared for 1 M H2SO4 solution corrosion experiments. Gravimetric, potentiodynamic polarization and electrochemical impedance spectroscopic analyses were employed. The composites corroded initially at relatively high rates, gradually declining during long immersion times in the acidic solution. The intersection of reinforcements at the general surfaces of the composites where flawed oxide skins predominate acted as active sites for corrosion initiation. From potentiodynamic polarization studies, the corrosion currents increased with time for all specimens, with A9 being 1075.65 μA/cm2 at 72 h as against 857.99 μA/cm2 at 24 h of measurement. The corrosion potentials for all the specimens hovered around −654.00 to −647.22 mV. Bode plots revealed similar electrochemical reactions over all the substrates' surfaces. The relative corrosion resistance by the specimen depends on the oxide films' nature as the cathodic interfacial reinforcements dropped off into the acidic environment.https://doi.org/10.1002/eng2.12733aluminium matrix compositeelectrochemical analysisgravimetric analysispalm kernel shell ashsilicon carbide |
| spellingShingle | Peter Pelumi Ikubanni Makanjuola Oki Adekunle Akanni Adeleke Akintunde Sunday Onaolapo Prabhu Paramasivam Electrochemical investigation of the corrosion susceptibility of hybrid reinforced Al6063 with SiC and PKSA in 1.0 M sulfuric acid environment Engineering Reports aluminium matrix composite electrochemical analysis gravimetric analysis palm kernel shell ash silicon carbide |
| title | Electrochemical investigation of the corrosion susceptibility of hybrid reinforced Al6063 with SiC and PKSA in 1.0 M sulfuric acid environment |
| title_full | Electrochemical investigation of the corrosion susceptibility of hybrid reinforced Al6063 with SiC and PKSA in 1.0 M sulfuric acid environment |
| title_fullStr | Electrochemical investigation of the corrosion susceptibility of hybrid reinforced Al6063 with SiC and PKSA in 1.0 M sulfuric acid environment |
| title_full_unstemmed | Electrochemical investigation of the corrosion susceptibility of hybrid reinforced Al6063 with SiC and PKSA in 1.0 M sulfuric acid environment |
| title_short | Electrochemical investigation of the corrosion susceptibility of hybrid reinforced Al6063 with SiC and PKSA in 1.0 M sulfuric acid environment |
| title_sort | electrochemical investigation of the corrosion susceptibility of hybrid reinforced al6063 with sic and pksa in 1 0 m sulfuric acid environment |
| topic | aluminium matrix composite electrochemical analysis gravimetric analysis palm kernel shell ash silicon carbide |
| url | https://doi.org/10.1002/eng2.12733 |
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