VALUATION OF MILL SCALE AS IRON PIGMENTS FOR PAINTING ANTICORROSIVE

Type : Article de conférence
Auteur(s) :  B. BEZZINA, M.T. ABED GHARS, H.Bendjama, S. Bouhouche
Année :  2015
Domaine : Sciences des matériaux
Conférence: Fifteenth International Conference New Trend on Fracture and Fatigue "Fracture and Environment"
Résumé en PDF :  (résumé en pdf)
Fulltext en PDF :  (.pdf)
Mots clés :  mill scale, corrosion inhibitor, spectroscopic, electrochemical analysis

Résumé : 

The mill scale is a steelmaking byproduct. This work focuses on the valuation of the steel waste and its transformation to a usable product in the field of anti-corrosion paints.These iron oxides have been examined as a pigment and corrosion inhibitor in both types of solvent based paints with different concentrations (1%, 3%, 7%, 15%) to determine the best formulation. Their properties were compared to that of an anticorrosion paint trademark based on iron oxide.For this purpose various techniques of mechanical and physical-chemical analysis were used:- Grinding is applied to pieces of mill scale for very fine powders (<32μm);- The particle size of the milled scale analysis, to determine their particle size distribution;- A primary electrochemical method used to evaluate the performance and scale vis-à-vis the phenomenon of corrosion behavior;- A UV-Visible spectroscopic method for determining the concentration of total dissolved iron.The experimental results showed that the anti-corrosion properties or rather inhibition efficiency increases with increasing concentration of the mill scale in the tested paints.Keywords: mill scale, corrosion inhibitor, spectroscopic, electrochemical analysis.