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Influence of cerium(III) ions on corrosion of TRIP 800 steel in hydrochloric acid solution
Author(s) -
Rosalbino F.,
Scavino G.
Publication year - 2016
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.201608966
Subject(s) - hydrochloric acid , corrosion , dielectric spectroscopy , cerium , materials science , electrochemistry , polarization (electrochemistry) , nuclear chemistry , metallurgy , ion , inorganic chemistry , chemistry , electrode , organic chemistry
Ce(III) was studied for its corrosion inhibition property on the corrosion of TRIP 800 C‐Mn‐Si steel in 0.5 M hydrochloric acid at 25 °C by potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) techniques. SEM was used to examine the specimen surface exposed to 0.5 M HCl containing the optimal threshold Ce(III) concentration (2.5 mM). A model for the corrosion process mechanism and inhibition by Ce(III) salt for TRIP 800 steel in the tested medium is proposed.