Steel parts are often zinc plated for corrosion resistance because zinc plating is thin, decorative, and inexpensive, while providing sacrificial protection to the steel, deterring red rust. But the zinc plating is invariably dipped in a chromate conversion coating to deter corrosion of the zinc pla...
On the other hand, the present research on coating design has significantly progressed with the use of methodologies allowing a fundamental understanding of the microstructural and environmental factors triggering the corrosion. For instance, the knowledge of dissolution mechanisms during open circuit potenti...
A.Hi Suresh. The yellow chromate conversion coating as it stands is improper -- it should not easily rub off with a thumb. There are several possible and common causes. Insufficient curing time (you should not attempt that thumb test for at least 24 hours after plating), drying at too hi...