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Intergranular corrosion of alloy 800 by the electrochemical potentiokinetic reactivation method
Author(s) -
Borello A.,
La Barbera A.,
Mig A.,
Vittori M.
Publication year - 1981
Publication title -
materials and corrosion
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.487
H-Index - 55
eISSN - 1521-4176
pISSN - 0947-5117
DOI - 10.1002/maco.19810320804
Subject(s) - intergranular corrosion , alloy , materials science , metallurgy , passivity , electrochemistry , corrosion , chemistry , electrode , electrical engineering , engineering
The “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 morphology.