The monitoring of pitting corrosion in stainless steel in the simulated corrosive conditions of marine applications

Authors

  • Thee Chowwanonthapunya Faculty of International Maritime Studies, Kasetsart University, Chonburi 20230, Thailand

DOI:

https://doi.org/10.33175/mtr.2019.146185

Keywords:

Corrosion, Microstructure, Marine application

Abstract

This paper describes the monitoring of pitting corrosion in ferritic and austenitic stainless steel under the simulated acidic conditions of marine applications. The monitoring dealt with corrosion weight loss and metallurgical investigation. The results indicated that stainless steel with passive film shows good corrosion resistance to the simulated corrosive environment for all test periods. In contrast, stainless steel without passive film cannot provide an inhibiting effect for the whole test period. After 24 h. of testing, both of the stainless steels were locally attacked. Pitting corrosion was observed on the surface of both stainless steels. In small pits, self-accelerating corrosion can occur. Therefore, longer immersion times were attributed to the higher corrosion rates of both stainless steel in simulated acidic conditions.

References

Chowwanonthapunya, T., & Wiriyanon, R. (2015). Investigation of a cracked catalyst preparation vessel. Materials Performance 54(8), 64-67.

Garcia, C., Martin, F., Tiedra, P. D., Blanco, Y., & Lopez, M. (2008). Pitting corrosion of welded joints of austenitic stainless steels studied by using an electrochemical minicell. Corrosion Science 50(4), 1184-1194. doi:10.1016/j.corsci.2007.11.028

Jiménez-Come, M. J., Muñoz, E., García, R., Matres, V. M., Martín, L., Trujillod, F., & Turias, I. (2012). Pitting corrosion behaviour of austenitic stainless steel using artificial intelligence techniques. Journal of Applied Logic 10(4), 291-297. doi:10.1016/j.jal.2012.07.005

Moayed, M. H., & Golestanipour, M. (2005). An investigation on the effect of bleaching environment on pitting corrosion and transpassive dissolution of 316 stainless steel. Materials and Corrosion 56(1), 39-43. doi:10.1002/maco.200403809

Xhoffer, C., Bergh, K. V. D., & Henri, D. (2004). Electrochemistry: A powerful analytical tool in steel research. Electrochimica Acta 49(17-18), 2825-2831. doi:10.1016/j.electacta.2004.01.072
12th Anniversary Faculty of International Maritime Studies, Kasetsart University 

Downloads

Published

2019-01-01

How to Cite

Chowwanonthapunya, T. (2019). The monitoring of pitting corrosion in stainless steel in the simulated corrosive conditions of marine applications. Maritime Technology and Research, 1(1), 23–27. https://doi.org/10.33175/mtr.2019.146185

Issue

Vol. 1 No. 1 (2019): January - June

Section

Article

License

Copyright: CC BY-NC-ND 4.0