Abstract
Polymeric epoxy-based composites are modified with nanopowders of silicon oxide (∼ 100 nm). By the method of spraying, these composites are applied to specimens of 2024-T3 aluminum alloy preliminary treated with molybdate solutions to get conversion layers. Three types of polymeric coatings are considered: reference, treated by silica, and with additional polyurethane coatings. The aim of modification of polymeric coatings is to absorb and/or block unwanted ions/molecules (Cl−, O2, OH−, H2O, etc.) and improve the protective properties of the films. The tests carried out by the method of electrochemical impedance spectroscopy, in a salt-fog chamber, and by immersion in a 0.5 M NaCl solution reveal high anticorrosion characteristics of the coating. New coatings are promising for the corrosion protection in the aircraft industry.
Article PDF
Similar content being viewed by others
Avoid common mistakes on your manuscript.
References
P. R. Roberge, Handbook of Corrosion Engineering, McGraw-Hill, New York (2000).
P. A. Schweitzer, Atmospheric Degradation and Corrosion Control, Marcel Dekker, New York (1999).
D. Jones, Principles and Prevention of Corrosion, 2nd edition, Prentice Hall, Upper Saddle River, NJ (1996).
C. Corfias, N. Pebere, and C. Lacabanne, “Characterization of a thin protective coating on galvanized steel by electrochemical impedance spectroscopy and a thermostimulated current method,” Corr. Sci., 41, 1539–1555 (1999).
C. Corfias, N. Pebere, and C. Lacabanne, “Characterization of protective coatings by electrochemical impedance spectroscopy and a thermostimulated current method. Influence of the polymer binder,” Corr. Sci., 42, 1337–1350 (2000).
J. O. Iroh and W. Su, “Corrosion performance of polypyrrole coating applied to low-carbon steel by an electrochemical process,” Electrochim. Acta, 46, 15–24 (2000).
R. J. Scully and S. T. Hensley, “Lifetime prediction for organic coatings on steel and a magnesium alloy using electrochemical impedance methods,” Corr. Sci., 50, No. 9, 705–716 (1994).
L. Fedrizzi, F. J. Rodriguez, S. Rossi, F. Deflorian, R. Di Maggio, “The use of electrochemical techniques to study the corrosion behavior of organic coatings on steel pretreated with Sol-Gel Zirconia Films,” Electrochim. Acta, 46, 3715–3524 (2001).
L. Fedrizzi, A. Bianchi, F. Deflorian, S. Rossi, and P. L. Bonora, “Effect of chemical cleaning on the corrosion behavior of painted aluminum alloys,” Electrochim. Acta, 47, 2159–2168 (2002).
M. F. Montemor, A. M. Simoes, M. G. S. Ferreira, B. Williams, and H. Edwards, “The corrosion performance of organosilane based pretreatments for coatings on galvanized steel,” Progr. Org. Coat., 38, 17–26 (2000).
L. Salanais, “Prevention of corrosion in aircraft—an overview of the evolution of materials and protective treatments,” CIM Bull., 81(915), 103–110 (1988).
W. D. Callister, Jr., Materials Science and Engineering. An Introduction, 5th edition, Wiley, New York (2000).
W. S. Tait, K. A. Handrich, and S. W. Tait, “Analyzing and interpreting EIS data from internally coated steel aerosol containers,” in: Scully, Silverman, and Kending (editors), Electrochemical Impedance: Analysis and Int., ASTM STP 1188 (1993), pp. 428–437.
J. R. Scully, “Electrochemical impedance of organic coated steel: correlation of impedance parameters with long-term coating deterioration,” J. Electrochem. Soc. (JES), 136, No. 4, 979 (1989).
A. S. Hamdy, A. M. Baccaria, and T. Temtchenko, “Corrosion protection of AA6061 T6 by fluoropolymer coatings in NaCl solution,” Surf. Coat. Technol., 155, 176–183 (2002).
R. Asmatulu and R. O. Claus, “Corrosion protection of materials surfaces by applying nanotechnology associated studies,” in: Mat. Res. Soc. Symp. Proc. (MRS 2004 Spring Meeting, Boston), Vol. 788 (2004), pp. LI 1.44.1–L11.44.6.
J. M. Yeh, S. J. Liou, C. G. Lin, Y. P. Change, Y. H. Yu, and C. F. Cheng, “Effective enhancement of anticorrosion properties of polystyrene by polystyrene-clay nanocomposite materials,” J. Appl. Polymer Sci., 92, 1970–1976 (2004).
V. J. Gelling, M. M. Weist, D. E. Tallman, G. P. Bierwagen, and G. G. Wallace, “Electroactive-conducting polymers for corrosion control. 4. Studies of poly(3-octyl)pyrrole and poly(3-octadecyl)pyrrole on aluminum 2024-T3 alloy,” Progr. Organ. Coat., 43, 149–157 (2001).
Q. L. Thu, G. P. Bierwagen, and S. Touzain, “EIS and ENM measurements for three different organic coatings on aluminum,” Progr. Organ. Coat., 42, 179–187 (2001).
T. L. Metroke, O. Kachurian, and E. T. Knobbe, “Spectroscopic and corrosion resistance characterization of GLYMO-TEOS ormosil coating for aluminum alloy corrosion inhibition,” Progr. Organ. Coat., 44, No. 202, 295–305.
D. Chidambaram, M. J. Vasquez, G. P. Halada, and C. R. Clayton, “Studies on the repassivation behavior of aluminum and aluminum alloy exposed to chromate solutions,” Surf. Interf. Anal., 35, 226–230 (2003).
L. De Rosa, T. Monetta, F. Bellucci, D. B. Mitton, A. Atienza, and C. Sinagra, “The effect of a conversion layer and organic coating on the electrochemical behavior of 8006 and 8079 aluminum alloys,” Progr. Organ. Coat., 44, 153–160 (2002).
R. Asmatulu, R. O. Claus, and I. Tuzcu, “Adhesion failure of thin-film coatings by internal and external stresses at interfaces,” in: Proc. of the Fifth Internat. Congr. on Thermal Stresses and Related Topics, TS2003 (June 2003, Blacksburg) Blacksburg, VA (2003), pp. MA-6-3-1–MA-6-3-4.
http://www.lasurface.com/w_month_subj/ECASIA2001/Adsorption%20of%20organic%20acids.pdf.
G. Grundmeier, W. Schmidt, and M. Stratmann, “Corrosion protection by organic coatings: electrochemical mechanism and novel methods of investigation,” Electrochem. Acta, 45, 2515–2533 (2000).
C. S. Kumar, V. S. Rao, V. S. Raja, A. K. Sharma, and S. M. Mayanna, “Corrosion behavior of solar reflector coatings on AA 2024T3—an electrochemical impedance spectroscopy study,” Corr. Sci., 44, 387–393 (2002).
ASTM B117: Standard Practice for Operating Salt Spray (Fog) Apparatus, ASTM International (1997 Edition).
Author information
Authors and Affiliations
Additional information
Published in Fizyko-Khimichna Mekhanika Materialiv, Vol. 43, No. 3, pp. 103–108, May–June, 2007.
Rights and permissions
About this article
Cite this article
Asmatulu, R., Claus, R.O., Mecham, J.B. et al. Nanotechnology-associated coatings for aircrafts. Mater Sci 43, 415–422 (2007). https://doi.org/10.1007/s11003-007-0047-7
Received:
Issue Date:
DOI: https://doi.org/10.1007/s11003-007-0047-7