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The role of acetic acid (HAc) or H+ in initiating the crevice corrosion of N80 carbon steel in CO2-saturated NaCl solution was studied by weight loss and electrochemical measurements. It is demonstrated that crevice corrosion could be initiated by the concentration difference either HAc or H+ between outside and inside the crevice. The corrosion rate inside the crevice becomes higher than that outside...
Erosion-corrosion (E-C) behaviour of stainless steel at different locations of a 90° elbow was studied by array electrode technique. It is demonstrated that more negative corrosion potential and pitting potential, higher passive current density, and higher E-C rate appear at the outer wall of elbow outlet. The electrodes at the outer wall of elbow inlet and at the inner wall act as cathodes while...
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