%0 Journal Article
%T Corrosion Resistance of Heat-Treated NST 37-2 Steel in Hydrochloric Acid Solution
%A David Abimbola Fadare
%A Taiwo Gbolarumi Fadara
%J Journal of Minerals and Materials Characterization and Engineering
%P 1-7
%@ 2327-4085
%D 2013
%I Scientific Research Publishing
%R 10.4236/jmmce.2013.11001
%X Corrosion of metal components constitutes a major challenge in many engineering systems, with appropriate design, proper material selection, and heat treatment as commonly used control strategies. In this study, the corrosion behaviour of heat-treated (annealed, normalised, hardened, and tempered) NST 37-2 steel in three concentrations (1.0, 1.5 and 2.0 M) of hydrochloric acid solution was investigated using weight loss and electrode-potential methods. Results showed that corrosion rate increased with increase in acid concentration. The decreasing order of corrosion resistance was Tempered > Annealed > Normalised > Hardened > Untreated. The surface pictures of the heat-treated and untreated samples showed uniform and pitting corrosion with the latter becoming more pronounced as concentration increased.
%K Heat Treatment
%K Corrosion Resistance
%K Hydrochloric Acid
%K NST 37-2 Steel
%U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=27187