Advancing Steel Component Repair by Investigating the Surface Properties of Mild Steel Plates Coated with Alumina Using Metal Inert Gas Welding

F M Mwema*, H Shagwira, T C Jen, J M Wambua, M O Bodunrin, E T Akinlabi

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review


Arc-welding coatings are extensively employed within the informal sectors of many African countries to repair various machine components, such as gear teeth, machine shafts, bushings, and many others. In the pursuit of advancing steel component repair techniques, this study investigates the surface properties of mild steel plates coated with alumina using the Metal Inert Gas (MIG) welding process. Mild steel wire of diameter 1.6 mm, alumina particles of size 1 µm, and mild steel plates were used. The prepared samples were analysed for microstructural, hardness, wear, and corrosion properties. For the first time, and through a traditional welding process, it is demonstrated that the hardness, wear, and corrosion resistance of steel parts can be improved by the inclusion of alumina particles on their surfaces. As such, this work will have an impact on the informal engineering sector (Jua Kali sector as known in Kenya) involved in the surface repair of steel components.
Original languageEnglish
Article number012001
Number of pages8
JournalJournal of Physics: Conference Series
Issue number1
Publication statusPublished - 28 Jun 2024
Event2023 International Conference on Mechanical, Aerospace and Electronic Systems (MAES) - Johannesburg, South Africa
Duration: 24 Nov 202326 Nov 2023

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