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Effect of Heat Treatments on Corrosion of Welded Low-Carbon Steel in Acid and Salt Environments

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DOI: 10.4236/jmmce.2013.13018    3,749 Downloads   5,323 Views Citations


Effect of heat treatment on the corrosion of welded low-carbon steel in 0.3 M and 0.5 M of hydrochloric acid and sodium chloride environments at ambient temperature (25oC) has been investigated. Arc welded low-carbon steel sample of known composition were subjected to the corrosion reagents for 21 days (504 hours). pH and weight loss values were taken at interval of 3 days. Thereafter, weight loss method was used to measure therate of corrosion attack on the heat treated samples at ambient temperature. Results obtained showed that at low concentration, the annealed sample exhibits better corrosion characteristic as compared to the normalized and quenched samples. However, at higher concentration the normalized sample exercised better service performance over the annealed and quenched samples. Thequenched sample was found to have relatively low corrosion performance over the annealed and normalized samples at both low and high concentrations of the media.

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S. Seidu and B. Johnson Kutelu, "Effect of Heat Treatments on Corrosion of Welded Low-Carbon Steel in Acid and Salt Environments," Journal of Minerals and Materials Characterization and Engineering, Vol. 1 No. 3, 2013, pp. 95-100. doi: 10.4236/jmmce.2013.13018.

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