Intergranular corrosion of alloy 800 by the electrochemical potentiokinetic reactivation method

摘要

AbstractThe “Electrochemical Potentiokinetic Reactivation” method has been employed to quantify the degree of intergranular corrosion of Alloy 800, with different Ti + Al content, aged in the range 500–650°C for times up to 5000 hours. The results were compared with the classical Rollason's curves obtained by means of the Strauss' test and a satisfactory agreement was found.An explanation of the slight differences between both methods has been proposed on the basis of the passivity film morp