Abstract: The purpose of this study is to investigate the corrosion behavior of mild steel and carbon steel in soil environment through experimental exposure and comparative analysis. Weight loss measurements, corrosion rate calculations, and surface morphology observations were conducted over a 360day period. Corrosion determining parameters such as pH, electrical conductivity, chloride, sulphate, resistivity, moisture content, and Total Heterotrophic Bacteria (THB) were analyzed for the soil sample collected prior to the burial of the steel coupons. Soil resistivity at the location was taken using Vertical Electrical Sounding (VES). The results of the soil sample analyzed showed that the soil was slightly acidic with a pH of 6.4. The electrical conductivity (EC) of the soil was 630 μS/cm, chloride 96 mg/l, sulphate 20 mg/l, resistivity of 65 Ω.m, moisture content 45%, and THB of CFU/ml. Some of the analyzed soil parameter values are within the range of environmental factors that significantly influence corrosion behavior of buried metals. The results of the experiment showed that the soil has a moderate corrosive risk and that both mild steel and carbon steel are susceptible to corrosion in the soil environment, but the degree and form of corrosion differ. Hence, mild steel experienced higher corrosion rates (uniform corrosion) than carbon steel which exhibited localized pitting and crevice corrosion. Keywords: Corrosion, Mild Steel, Carbon Steel, Soil Environment, Niger Delta. Title: Comparative Analysis of Mild and Carbon Steel Corrosion in Soil Environment in Niger Delta – Nigeria Author: Amadi, T.N., Ukoha-Onuoha, E. International Journal of Novel Research in Engineering and Science ISSN 2394-7349 Vol. 13, Issue 1, March 2026 - August 2026 Page No: 17-23 Novelty Journals Website: www.noveltyjournals.com Published Date: 25-May-2026 DOI: https://doi.org/10.5281/zenodo.20381113 Paper Download Link (Source) https://www.noveltyjournals.com/upload/paper/Comparative%20Analysis%20of%20Mild%20and%20Carbon%20Steel%20Corrosion-25052026-7.pdf
Amadi et al. (Mon,) studied this question.