《Table 1.Parameters of potentiodynamic polarization curves》

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《Effect of the frequency of high-angle grain boundaries on the corrosion performance of 5wt%Cr steel in a CO_2 aqueous environment》

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The electrochemical parameters of all of the tested specimens were obtained from a Tafel fitting of the potentiodynamic polarization curves；the results are listed in Table 1.These electrochemical parameters include the self-corrosion potential Ecorr，corrosion current density Icorr，anodic Tafel constantβa，and cathodic Tafel constantβc.The increases in tempering temperature cause the decreases in corrosion potential and the increases in corrosion current.The results show that，with increasing tempering temperature，the corrosion power and rate both increase.