Edun, B.M and Ajayi, O. O. and Babalola, P.O. and Joseph, O. O (2024) The Impact of Selected Bio-Based Carburising Agents on Mechanical and Tribocorrosion Behaviour of Medium Carbon Steel. J Bio Tribo Corros, 10 (83).
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Abstract
Carburisation is a surface engineering method exploited for low/medium carbon steels to achieve blended funtionalisations in tribological and corrosion-resistant properties. However, much work has not been carried out to study the reaction of carburised medium carbon steel to combined actions by abrasion and electrochemical wear. This paper focuses on investigating the corrosion polarisation tendency of the various blends of the solution on carburised and as-received medium carbon steel using potentiodynamic polarisation tests and weight loss analysis. Hence, palm kernel oil (PKO) and sodium chloride (NaCl) of 20.475 g prepared with 100 ml of distilled water as a control medium were employed for this study. The corrosion susceptibility of the asreceived medium carbon steel (uncarburised and carburised) materials, in differing concentrations as 0 ml, 0.2 ml, 0.4 ml, 0.6 ml, and 0.8 ml test solution under differing applied potentials were evaluated employing a polarisation tool. The corrosion susceptibility of the asreceived medium carbon steel (uncarburised and carburised) materials, in differing concentrations as 0 ml, 0.2 ml, 0.4 ml, 0.6 ml, and 0.8 ml test solution under differing applied potentials were evaluated employing a polarisation tool. Particularly, in the pitting environment containing 0.20475 M NaCl, numerous corrosion pits are formed inside the wear track on the untreated specimen at potentials much lower than the pitting potential, while no corrosion pits are observed inside the wear track on the carburized specimen at anodic potentials as high as 1000 mV(SCE). The SEM/EDS also demonstrated the microstructural behavior of the surface oxides, spots, fractures, and corrosive pits at contact with the palm kernel oil (PKO) and sodium chloride (NaCl) solution environment. Comparatively, the result showed that there was a significant improvement in the mechanical properties of the carburised medium carbon steel material used to develop the hammers in this study.
| Item Type: | Article |
|---|---|
| Subjects: | T Technology > TJ Mechanical engineering and machinery T Technology > TP Chemical technology |
| Divisions: | Faculty of Engineering, Science and Mathematics > School of Engineering Sciences |
| Depositing User: | Patricia Nwokealisi |
| Date Deposited: | 10 Jan 2025 13:16 |
| Last Modified: | 10 Jan 2025 13:16 |
| URI: | http://eprints.covenantuniversity.edu.ng/id/eprint/18686 |
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