Electrochemical performance analysis based on chromium mist inhibitors.

In this paper, the stability of the fog suppression effect of 20 different domestic chrome fog inhibitors and their effect on the thickness and corrosion resistance of the plated layer were studied by formulating the basic chrome plating solution with a common chrome plating solution formulation. The stability of the fog suppression effect of the 20 different chromium fog inhibitors was analysed by measuring the variation of the thickness of the chromium fog inhibitor foam layer with time. It was found that the thickness of the foam layer produced by the TDFS chromium mist inhibitor during the plating process changed least significantly at 30 min after plating, and the stability of the fog inhibiting effect was the best; compared with the thickness of the layer obtained from a common chromium plating solution without the addition of chromium mist inhibitor, it was found that the thickness of the layer obtained from the plating solution with the addition of PALDOTMV-400 chromium mist inhibitor was the thickest. The experimental results show that the chromium plating solution with the addition of WH-883 chromium mist inhibitor has the best electrochemical corrosion resistance, because its impedance value is the largest and the corrosion current is smaller. [ABSTRACT FROM AUTHOR]