Comparison between the conventional and high-efficiency hard chromium platings in regard to aeronautical demands

Hard chromium is a common plating, primarily used to increase the service l ife of functional parts by increasing their resistance to wear, abrasion, h eat and corrosion. It is also useful for restoring the original dimensions of worm parts. This paper compares the properties of the conventional and h igh-efficiency chromium platings, electrodeposited on AISI 4130 alloy steel , in regard to aeronautical standards. The effects of part geometry and pla ting thickness on the predicted behavior in service, as well as expected tr ends in the aircraft industry, are discussed.