Author:
Abdallah M.,El‐Etre A.Y.,Soliman M.G.,Mabrouk E.M.
Abstract
PurposeTo study the effects of the sodium salts of molybdate, tungstate and monovanadate as well as some derivatives of Neville‐Winter acid azo dyes on the corrosion of carbon steel in 3.5 percent NaCl solution.Design/methodology/approachOpen circuit potential measurement and potentiostatic polarization techniques have been used.FindingsIt was found that all the compounds had inhibition effects on carbon steel dissolution. Inhibition efficiency (IE) increased with increase in inhibitor concentration. The process of inhibition was attributed to the formation of an adsorbed film on the metal surface, which protects the metal against the corrosive medium. The adsorption of these compounds on the steel/chloride interface was found to follow Freundlich adsorption isotherm behaviour.Originality/valueProves the effectiveness of the sodium salts of molybdate, tungstate and monovanadate as well as some derivatives of Neville‐Winter acid azo dyes on the corrosion of carbon steel in 3.5 percent NaCl solution.
Subject
General Materials Science,General Chemical Engineering
Reference18 articles.
1. Abdallah, M. and El‐Naggar, M. (2001), “Cu2+ cation+3.5‐dimethyl pyrazole mixture as a corrosion inhibitor for carbon steel in sulfuric acid solution”, Mater. Chem. & Physics, Vol. 71, pp. 291‐8.
2. Abd El‐Rehim, S.S., Ibrahim, A.M. and Khaled, F.K. (1999), “Corrosion inhibition and adsorption behaviour, of 4‐amino antipyrine on mild steel in H2SO4”, Corrosion Prevention & Control, December, pp. 157‐62.
3. Ali, S.K.A., Saeed, M.T. and Rahman, S.U. (2003), “The isoxazolidines a new class of corrosion inhibitors of mild steel in acidic medium”, Corros. Sci, Vol. 45, pp. 253‐66.
4. Awad, H.S. and Turgoose, S. (2002), “Role of complexes in inhibition of mild steel by zinc‐1‐hydroxyethylidene‐1,1‐diphosphonic acid mixtures”, Br. Corros. J., Vol. 37 No. 2, pp. 147‐54.
5. Bairamov, A.Kh. and Verdiev, S.ch. (1992), “Oxidizing type inhibitors for protection of aluminum and steel surfaces in sodium chloride solutions”, Br. Corros. J., Vol. 27 No. 2, pp. 128‐34.
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