Pregledni rad

Chromate conversion coatings and their current application

P. Pokorny ; Czech Technical University – Klokner Institute, Prague, Czech Republic
P. Tej ; Czech Technical University – Klokner Institute, Prague, Czech Republic
P. Szelag ; Pragochema Prague, Prague, Czech Republic

Sažetak

This paper describes formation, composition and possible production technologies of application chromate coatings. Summation of common examples of applications of these coatings in corrosion protection of metals and alloys is provided. Individual chromate coatings are divided by their dominant anions either with CrVI or CrIII. Restrictions of chromate coatings with dominantly CrVI and related toxicity of hexavalent chromium is discussed in detail. In conclusion, examples of both chromium and other, alternative coatings are summed up. Application of these coatings as a protection for concrete hot-dip galvanized reinforcement is also reviewed.

Ključne riječi

chromate coatings; conversion coatings; aluminium alloys; toxicity; hot – dip galvanized reinforcement

Hrčak ID:

146687

URI

https://hrcak.srce.hr/146687

Datum izdavanja:

1.4.2016.

Posjeta: 11.222 *