Salawu, Enesi Y. and Shittu, K. A. and Afolabi, S. A. and Kayode, J. F. and Lawal, Sunday L. and Ajayi, O. O. and Ongbali, Samson O. (2023) Microstructural Evaluations of Mild Steel and HT250 Grey Cast Iron in Ethanol Environment. NIGERIAN JOURNAL OF TECHNOLOGICAL DEVELOPMENT, 20 (3). pp. 113-123. ISSN Print ISSN: 0189-9546 | Online ISSN: 2437-2110
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Abstract
The study focused on the response of mild steel and HT250 grey cast iron in varying ethanol concentration. First, a robust review of both materials’ behaviour under different environment was established using microstructural evolutions. Secondly, 30 × 30 × 10 mm dimension of both materials were employed in the study by immersing them in varying ethanol concentrations of BG-43 %, ESG- 42 %, CG-43 %, SQD- 42 % using distilled water as control. The microstructural behaviour showed that every of the sample responded according to the medium of interaction (ethanol). The degree of surface damage also depends on the ethanol concentration and the heavy presence of Fe and oxygen especially in that of grey cast iron. Corrosion cracks and deposits can be attributed to the reaction between the surface and the ethanol. Thus, environment of application is important in material selection. Results suggests that the microstructural changes provide to the material scientist the qualitative corrosion information of these materials in different environment. Conclusively, the study has enlightened the design engineers and material specialist on the need for proper material selection during engineering design.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Microstructure, mild steel, grey cast iron, ethanol, distilled water, corrosion |
| 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: | 08 Jan 2025 15:04 |
| Last Modified: | 08 Jan 2025 15:04 |
| URI: | http://eprints.covenantuniversity.edu.ng/id/eprint/18669 |
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