15 research outputs found
Numerical and Experimental Simulation of Iron Dissolution in a Crevice with a Very Dilute Bulk Solution
EFFECTS OF PRECIPITATION FOR AGING ON MECHANICAL AND CORROSION RESISTANCE PROPERTIES OF CAST 2507 SUPER DUPLEX STAINLESS STEEL
Dissolution of Ag/AgCl Reference Electrode and Deposition of Silver Onto the Surface of 5083 H321 Aluminum Alloy, During Corrosion in 3 wt % NaCl Solution at Rest Potential
Aqueous corrosion performance of nanostructured bainitic steel
In this study, the corrosion performance of nanostructured bainitic steel was compared with martensitic steel in chloride-containing solution using electrochemical techniques. Electrochemical impedance spectroscopy (EIS) results showed that the polarization resistance (Rp) for nanostructured bainitic steel (3400 Ω cm2) was higher than that of martensitic steel (2000 Ω cm2). Potentiodynamic polarization results showed an 85% lower corrosion current density for nanostructured bainitic steel compared to martensitic steel. Galvanostatically polarized martensitic steel revealed high localized corrosion i.e., intergranular corrosion (IGC) as well as localized attack in the grains. However, the nanostructured bainitic steel when polarized galvanostatically exhibited only a marginal selective dissolution of retained austenite. Thus, it can be suggested that nanostructured bainitic steel will perform better than martensitic steel in chloride-containing environments