article · Journal of Materials and Engineering
The problem of wear and corrosion of materials has been a major industrial concern that needs to be addressed and mitigated. The search for eco-friendly, cheap, and toxic-free green materials that are durable and corrosion-resistant has remained a focus of research to protect infrastructures from failures. Green composite materials can be an alternative to synthetic inorganic inhibitor materials. This work examines the properties of titanium (IV) oxide - Hunteria umbellata seed extract composite on mild steel in acidic solutions of 5% HCl and 5% H2SO4. Characterization of material samples was done using X-ray diffraction (XRD), Scanning Electron Microscopy (SEM), and Fourier transform spectroscopy (FTIR). Corrosion rates, surface coverage, and inhibition efficiency were evaluated. The inhibition efficiency of the mild steel coated with composite was observed to have higher efficiency (76.9%) in HCI and offer higher resistance compared to H2SO4 (74.0%). The composite coating on the mild steel surface serves as a barrier and protective layer to corrosion.
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DOI: 10.61552/jme.2025.04.003
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