Thermally Sprayed Coatings as Corrosion Protection for Steel Structures – Influence of the Manufacturing Processes on the Coating Quality

Abstract

The use of technical construction parts in corrosive environments frequently leads to costly damage and sometimes to a loss of the functionality of the component parts. Particularly to be noted in this regard are steel structures exposed to industrial and maritime weather conditions (e.g. steel towers, tower flanges for the wind energy industry, primarily in coastal and offshore regions, supports and arch parts used in bridge construction, etc.). These require an especially high corrosion resistance.

Thermally Sprayed Coatings as Corrosion Protection for Steel Structures – Influence of the Manufacturing Processes on the Coating Quality

“…These require an especially high corrosion resistance. Thermally sprayed (TS) coatings made of zinc, aluminium and their alloys are widely used as a passive corrosion protection in a wide range of aggressive environments (in industrial and maritime conditions for example) [1,2]. These layers, used frequently as primer-coats in duplex coating systems, offer a long-term corrosion protection for periods of more than 20 years.…”

“…These layers, used frequently as primer-coats in duplex coating systems, offer a long-term corrosion protection for periods of more than 20 years. The development of deeper knowledge on the subject of implementation and application methodologies of the spraying process was the focus of a recently completed research project (Investigation 1) [3]. Based on the results obtained, the current project (Investigation 2) is concentrated on the influence and the possibilities of the sealing parameters.…”