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Hard chromium replacements have been actively sought for decades. In this, the Final Report for the AESF Foundation’s first Research Project since the formation of the NASF, the authors present the results of their extensive research into novel plating processes.

Lessons from the stewards of surface finishing. 

Products Finishing offers a look back at some of the most noteworthy finishing industry stories from 2021.

Due to their desire to reduce chromium content of their parts, a number of our customers are asking us to investigate zinc alloy plating of their parts.

BİSAN and Interpon work together to develop new and customized colors to help satisfy a global boom

Electrodeposited nanocrystalline cobalt-phosphorus (nCoP) has emerged as a viable environmental alternative to hard chromium coatings for both line-of-sight (LOS) and non-line-of-sight (NLOS) applications. The coatings’ material properties revealed that nCoP has high hardness, enhanced ductility, lower wear rates, superior corrosion resistance and no issues with hydrogen embrittlement after baking.

The United States Environmental Protection Agency (EPA) is taking the first step toward developing new air emissions standards for plating and polishing facilities.

Absence of citric compounds also addresses the growing concern among beer brewers about residual flavors in the barrels.

A novel hexavalent chromate-free conversion coating was developed to improve anti-corrosion and adhesive-bonding characteristics of the magnesium alloys and zinc-nickel (Zn-Ni) plated steel substrates. The corrosion behavior of the coated and uncoated alloys was investigated by neutral salt fog (NSF) and electrochemical corrosion tests. Surface wettability of the pretreated substrates was investigated by static contact angle measurements. Wet-tape adhesion tests verified that there is strong adhesion between the primer and the chem film-treated substrates. The morphology and composition of the coated surfaces were investigated by optical microscopy (OM), scanning electron microscopy (SEM) and energy dispersive x-ray spectroscopy (EDX) methods. This trivalent chromium-based surface treatment is a potential hexavalent chromate conversion coating replacement for magnesium alloys and Zn-Ni plated steel.

Customers had quality requirements.