High-corrosion resistant trivalent chromium,bright blue passivation solution,iridescent passivation solution and black passivation solution have been developed successfully in our laboratory,and the relationship between various parameters and corrosion resistance and ornamentation was studied.

Spectrophotometric determination of hexavalent and trivalent chromium in white chromating solutions for zinc deposits;

A Cr3+ blue-white passivating technology for zinc plating of NdFeB magnets was developed, and the effects of process conditions on the performance of corrosion resistance and the appearance of the passivation film were studied.

A New Process of Silvery Passivation of Zinc-Base Alloy Electrodeposit;