Sodium diethyldithiocarbamate as a novel corrosion inhibitor to mitigate corrosion of 2024-T3 aluminum alloy in 3.5 wt% NaCl solution

In this work, sodium diethyldithiocarbamate (DDTC) was used as a novel corrosion inhibitor for AA2024-T3. For this purpose, the inhibition behavior of the DDTC was assessed by employing electrochemical tests and surface analysis. The electrochemical results indicated that DDTC acts as an effective corrosion inhibitor, and precipitation of a thin organic film on the AA2024-T3 surface is the main reason preventing the pitting corrosion of the samples. All of the electrochemical tests were proved by surface study analysis. The results of the SEM-EDS and ATR-FTIR studies showed the thin organic film formation on the aluminum alloy in the presence of DDTC. (C) 2020 Elsevier B.V. All rights reserved.