Mild steel surface pretreatment using phosphoric acid-inhibitor solution

Journal: Vol.7, No.4, autumn 2014 - Article 5   Pages :   Until 

Article Code:

Alireza Ghanbari: Amirkabir University of Technology - Polymer Engineering and Color Technology Department
M. M. Attar: Amirkabir University of Technology - Department of Polymer Engineering and Color Technology

Article's abstract:

In this study, a new mild steel surface pretreatment solution is introduced based on phosphoric acid containing a benzimidazole derivative as inhibitor. In this way, three different benzimidazole derivatives namely benzimidazole BI, 2-methyl benzimidazole 2MBI and 2-aminobenzimidazole 2ABI were studied in the 1M H3PO4 using DC and AC electrochemical techniques. Results revealed the better corrosion inhibition performance of 2ABI in the acidic medium. EDS analysis revealed that surface elemental composition of oxygen and phosphorus increased after pretreatment process, that could be attributed to formation of some compounds based on iron phosphate. EIS diagrams of the painted substrates showed that pre-treated mild steel using phosphoric acid-inhibitor provided higher corrosion protection performance than untreated mild steel during immersion in 3.5 w/w NaCl solution. Furthermore, acid wash process enhanced adhesion and cathodic disbonding resistance of painted mild steel.

Benzimidazole; EIS; Polarization; EDS analysis; pretreatment; Phosphoric acid; Epoxy coating

1. X. Li, S. Deng, H. Fu, Triazolyl blue tetrazolium bromide as a novel corrosion inhibitor for steel in HCl and H2SO4 solutions, Corros. Sci., 53(2011), 664-670.#2. A. Ghanbari, M. M.Attar, M. Mahdavian, Corrosion inhibition performance of three imidazole derivatives on mild steel in 1M phosphoric acid, Mater. Chem. Phys., 124(2010), 1205-1209.#3. H. Zarrok, A. Zarrouk, B. Hammouti, R. Salghi, C. Jama, F. Bentiss, Corrosion control of carbon steel in phosphoric acid by purpald–Weight loss, electrochemical and XPS studies, Corros. Sci., 64(2012), 243-252.#4. D. B. Freeman, Woodhead-Faulkner, Phosphating and metal pre-treatment, Cambridge 1990. 5. A. H. Taghvaei, H. Shokrollahi, K. Janghorban, Magnetic and structural properties of iron phosphate–phenolic soft magnetic composites, J. Magn. Mater., 321(2009), 3926-3932.#6. S Song, W. D Shen, M. H Liu, G. L Song, Corrosion study of new surface treatment/coating for AZ31B magnesium alloy, Surf. Eng., 28(2012), 486-490.#7. B. E. Amitha Rani and Bharathi Bai J. Basu., Green inhibitors for corrosion protection of metals and alloys: an overview, Int. J. Corr., 25(2012), 300-315.#8. L. Tang, X. Li, G. Mu, L. Li, G. Liu, The effect of 1-(2-pyridylazo)-2-naphthol on the corrosion of cold rolled steel in acid media: Part 2: Inhibitive action in 0.5 M sulfuric acid, Appl. Surf. Sci., 253(2006),2367-2372.#9. F. A. P. Fernandes, S. C. Heck, C. A. Picon, G. E. Totten, L. C. Casteletti, Wear and corrosion resistance of pack chromised carbon steel, Surf. Eng., 28(2012), 313-317.#10. M. Benabdellah, R. Touzani, A. Dafali, B. Hammouti, S. El Kadiri, Ruthenium–ligand complex, an efficient inhibitor of steel corrosion in H3PO4 media, Mater. Lett., 61(2007), 1197-1204.#11. S. Garai, S. Garai, P. Jaisankar, J. K. Singh, A. Elango, A comprehensive study on crude methanolic extract of Artemisia pallens (Asteraceae) and its active component as effective corrosion inhibitors of mild steel, Corros. Sci., (2012), 193-204.#12. A. P. Wieber, J. E. Guzman, E. E. Wolf, An STM study of phosphoric acid inhibition of the oxidation of HOPG and carbon catalyzed by alkali salts, Carbon, 44(2006),2069-2079.#13. M. A. Hegazy, A. M. Badawi, S. S. Abd El Rehim, W. M. Kamel, Corrosion inhibition of carbon steel using novel N-(2-(2-mercaptoacetoxy) ethyl) N dimethyl dodecan-1-aminium bromide during acid, Corros. Sci, 69(2013), 110-122.#14. R. Naderi, M. M. Attar, The role of zinc aluminum phosphate anticorrosive pigment in Protective Performance and cathodic disbondment of epoxy coating, Corros. Sci., 52(2010), 1291-1296.#15. M. Hernandez, J. Genesc´a, J. Uruchurtu, F. Galliano, D. Landolt, Effect of an inhibitive pigment zinc-aluminum-phosphate (ZAP) on the corrosion mechanisms of steel in waterborne coatings, Prog. Org. Coat., 56(2006),199–206.#16. R. L. Leonard, S. A. Hasan, A. Y. Terekhov, C. Thompson, R. A. Erck, J. H. Dickerson, J. A. Johnson, Protective coatings for enhanced performance in biomedical applications, Surf. Eng,.,28(2012), 473-479.#17. G. Buxbaum, G. Pfaff (Eds.), Industrial Inorganic Pigments, third ed., Wiley-VCH, Weinheim, 2005.#18. X. F. Cui, G. Jin, E. B. Liu, Z. Y. Wang, Z. Liu, Q. F. Li, F. H. Wang, Corrosion resistance of organic coating pretreated by phytic acid, Surf. Eng., 28(2012), 657-661.#19. N. Nabih, U. Herrmann, G. Glasser, I. Lieberwirth, K. Landfester, A. Taden, Water-based hybrid zinc phosphate–polymer miniemulsion as anticorrosive coating, Prog. Org. Coat., 76(2013), 555-562. #20. E. Barsoukov, J. Ross Macdonald (Eds.), Impedance Spectroscopy Theory, Experiments and Applications, second ed., John Wiley and Sons, 2005.#21. . A. Bastos, M. Ferreira, Corrosion inhibition by chromate and phosphate extracts for iron substrates studied by EIS and SVET, Corros. Sci., 48(2006), 1500-1512.#22. Q. J. Zhu, K. Wang, X. H. Wang; B. R. Hou, ,Electrochemical impedance spectroscopy analysis of cold sprayed and arc sprayed aluminium coatings serviced in marine environment, Surf. Eng.,28(2012), 300-305.#23. F. Geenen, Characterization of Organic Coatings with Impedance Measurements, PASMANS Publication, Delft, the Netherlands, 1991.#24. D. Raps, T. Hack, J. Wehr, M. Zheludkevich, Electrochemical study of inhibitor-containing organic–inorganic hybrid coatings on AA2024, Corros. Sci., 51(2009), 1012-1021.#25. R. G. Hu, S. Zhang, J. F. Bu, Ch. J. Lin, G. L. Song, Recent progress in corrosion protection of magnesium alloys by organic coatings, Prog. Org. Coat., 73(2012), 129-141.#26. S. Martinez, L. Zulj, F. Kapor, Disbonding of underwater-cured epoxy coating caused by cathodic protection current, Corros. Sci., 51(2009), 2253-2258.

Article's file
Page view: 4721
Article's download quantity : 369

Article System Login

Prof. Zahra Ranjbar
Dr. Farahnaz Nourmohammadian
Assistant Editor:
Dr. Mozhgan Hosseinnezhad
ISSN (online):
Institute for Color Science and Technology (ICST)

Quick Access
What is your opinion about the manuscript subscription system of PCCC website?
Website Statistics
Page view:4,722
Online Visitors:16