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Electrochemical investigations on corrosion protection oils
Author(s) -
Eich G.,
Schneider J.,
Zimmermann J.
Publication year - 2012
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.201005882
Subject(s) - dielectric spectroscopy , corrosion , salt spray test , electrochemistry , materials science , reproducibility , salt (chemistry) , metallurgy , test method , chemistry , chromatography , electrode , organic chemistry , mathematics , statistics
Tribologically affected surfaces of high‐strength steels often only may be protected against corrosion by the use of specific protecting oils. The protective effectiveness of these products is usually assessed by neutral salt spray test during qualification. As this test method takes a long time and because the reproducibility is poor a new test method was developed based on electrochemistry. It could be shown that a distinction was possible between well and nonprotecting oils based on current density curves and electrochemical impedance spectroscopy.