MSA  Vol.4 No.7 A , July 2013
Characteristics of Corrosion Product Layer Formed on Weathering Steel Exposed to the Tropical Climate of Vietnam
ABSTRACT

The weathering steel (Corten B) was exposed to out-door atmosphere of Hanoi (urban site) and Donghoi (marine site). The results showed the protective ability of corrosion product layer formed on weathering steel in the initial stage. The SEM-EDX analysis detected the presence of chromium and copper in the inner layers of corrosion product formed on weathering steel. These elements improved corrosion resistance of corrosion product layers. In addition, the dense α-FeOOH phase were appeared early in corrosion product which is detected by X-ray diffraction and Micro Raman investigations. The results of polarization and EIS measurements also demonstrated the protectiveness of the corrosion product of weathering steel.


Cite this paper
L. Lien and H. Hong, "Characteristics of Corrosion Product Layer Formed on Weathering Steel Exposed to the Tropical Climate of Vietnam," Materials Sciences and Applications, Vol. 4 No. 7, 2013, pp. 6-16. doi: 10.4236/msa.2013.47A1002.
References
[1]   C. Leygraf and T. Graedel, “Atmospheric Corrosion,” John Wiley and Sons, Inc., Hoboken, 2000.

[2]   K. Asami, M. Kikuchi, T. Sato and S. Itoh, “Tem Investigation of Rust on Weathering Steels Exposed for 17 Years,” Proceedings of the 15th International Corrosion Congress, Granada, 22-27 September 2002, Paper 27.

[3]   T. Kamimura, S. Nasu, T. Segi and S. Morimoto, “Corrosion Products Formed on Steel Surfaces Exposed to an Industrial Environment,” Proceedings of the 12th AsianPacific Corrosion Control Conference, Osaka, 16-21 September 2003, Paper A-08.

[4]   H. Kihira, Y. Ishi and T. Mizoguchi, “Corrosion Protection Mechanism of 3% Ni Weathering Steel,” Proceedings of the 12th Asian-Pacific Corrosion Control Conference, Osaka, 16-21 September 2003, Paper A-11.

[5]   H. Kihira, “Colloidal Aspects of Rusting of Weathering Steel,” In: H. Oshima and K. Furusawa, Eds., Electrical Phenomena at Interfaces—Fundamentals, Measurements and Applications, Macel Dekker, Inc., New York, 1998, pp. 429-440.

[6]   M. Yamashita, H. Konishi, J. Mizukib and H. Uchida, “Nanostructure of Protective Rust Layer on Weathering Steel Exposed for 17 Years Examined by Using Synchrotron Radiation,” Proceedings of the 15th International Corrosion Congress, Granada, 22-27 September 2002, Paper 48.

[7]   T. Nakayama and T. Ishikawa, “Improvement Mechanism of Resistance to Atmospheric Corrosion of Steels by an Approach of Artificially Synthesized Rusts,” Proceedings of the 12th Asian-Pacific Corrosion Control Conference, Osaka, 16-21 September 2003, Paper A-06.

[8]   S. Tsuri, A. W. Hassel and M. Stratmann, Electrochemical Behavior of Low Alloy Steels during Atmospheric Corrosion,” Proceedings of the 12th Asian-Pacific Corrosion Control Conference, Osaka, 16-21 September 2003, Paper A-05.

[9]   M. Kimura and H. Kihira, “Nanoscopic Mechanism of Protective Rust Formation on Weathering Steel Surface,” Nippon Steel Report No. 91, Japan, January 2005.

[10]   “Metals and Alloys—Procedure for Removal of Corrosion Products from Corrosion Test Specimens,” International Standard ISO 8407, Switzerland, 1991.

[11]   “Corrosion of Metals and Alloys—Corrosivity of Atmospheres—Measurement of Pollution,” International Standard ISO 9225, Switzerland, 1991.

 
 
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