Abstract
The general corrosion. behaviour of low residual (LR) steels alloyed with Mo was studied in HCl environments. The C content of LR steels ranged from 0·1 to 0·40% and the Mo content varied between 0·3 and 1·0%. Laboratory tests demonstrated that low levels of Mo result in a significant reduction of the dissolution rate of LR steels in HCl solutions. This reduction relative to LR plain C steels was accentuated at higher concentrations of HCl. The LR plain C steels showed increased dissolution rates with increased concentration. The results of this study suggest a positive role of Mo alloying in reducing the dissolution rates of LR steels in HCl solutions.
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