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The paper is focused on the part of complex work dealing with verification of functionality of non-destructive technique of electrochemical noise applied on HDG steel sheets samples with different surface treatment, namely on samples to be treat with Cr3+, anticorrosion oil and non-oiled and non-passivated ones. Besides monitoring of quality of surface treated zinc sheets (activity/passivity) by ENA technique an extension of corrosion deterioration was quantified gravimetrically after 3, 15, 22 and 30 days of exposure in 3 % NaCl, 3% ecological salt mainly composed of MgCl2, CaCl2 and condensation chamber. Corrosion products were observed with support of SEM microscopy with EDX analysis.

QUANTIFICATION OF CORROSION ACTIVITY ON HDG STEEL SHEETS DURING CYCLIC DIP TESTS IN CLASSICAL AND ECOLOGICAL SALT SOLUTIONS