Corrosion inhibition of Al-bronze in acidified 4% NaCl solution

Corrosion inhibition of Al-bronze in acidified 4% NaCl solution

The synergistic effect between either benzotriazole (BTA) or thiourea (TU) and iodide ion are used to retard the dissolution of Al–bronze alloy in deaerated solution of acidified 4% NaCl of pH 1.8–2 at 60 °C; this is shown by the weight loss and polarization techniques. Iodide ion alone has no effec...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Journal of materials science 1997-07, Vol.32 (14), p.3693-3700
Hauptverfasser: EL-WARRAKY, A. A, EL-DAHAN, H. A
Format: Artikel
Sprache:eng
Schlagworte:
Acidification
Aluminum bronzes
Applied sciences
Benzotriazole
Corrosion
Corrosion prevention
Dissolution
Exact sciences and technology
Materials science
Metals. Metallurgy
Sodium chloride
Synergistic effect
Weight loss
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:The synergistic effect between either benzotriazole (BTA) or thiourea (TU) and iodide ion are used to retard the dissolution of Al–bronze alloy in deaerated solution of acidified 4% NaCl of pH 1.8–2 at 60 °C; this is shown by the weight loss and polarization techniques. Iodide ion alone has no effect on the dissolution of the alloy but addition of 100 p.p.m. KI to 300 p.p.m. of both BTA and TU improved the inhibition efficiency to 92% and 78.8%, respectively, and also decreased the anodic current density in both media.
ISSN:0022-2461
1573-4803
DOI:10.1023/A:1018646800827