Structural Engineering and Mechanics

Techno-Press (테크노프레스)
권호 표지
DOI QR코드

DOI QR Code

Evaluation method for time-dependent corrosion depth of uncoated weathering steel using thickness of corrosion product layer

  • Kainuma, Shigenobu (Department of Civil Engineering, Kyushu University) ;
  • Yamamoto, Yuya (Planning Department, Japan Expressway Holding and Debt Repayment Agency) ;
  • Ahn, Jin-Hee (Department of Civil Engineering, Gyeongnam National University of Science and Technology) ;
  • Jeong, Young-Soo (Seismic Simulation Test Center, Pusan National University)
  • Received : 2017.12.15
  • Accepted : 2017.12.18
  • Published : 2018.01.25
⟨ Previous Next ⟩

Abstract

The corrosion environments in a steel structure are significantly different depending on the individual parts of the members. To ensure the safety of weathering steel structures, it is important to evaluate the time-dependent corrosion behavior. Thus, the progress and effect of corrosion damage on weathering steel members should be evaluated; however, the predicted corrosion depth, which is affected by the corrosion environment, has not been sufficiently considered until now. In this study, the time-dependent thicknesses of the corrosion product layer were examined to quantifiably investigate and determine the corrosion depth of the corroded surface according to the exposure periods and corrosion environments. Thus, their atmospheric exposure tests were carried out for 4 years under different corrosion environments. The relationship between the thickness of the corrosion product layers and mean corrosion depth was examined based on the corrosion environment. Thus, the micro corrosion environments on the skyward and groundward surfaces of the specimens were monitored using atmospheric corrosion monitor sensors. In addition, the evaluated mean corrosion depth was calculated based on the thickness of the corrosion product layer in an atmospheric corrosion environment, and was verified through a comparison with the measured mean corrosion depth.

Keywords

Acknowledgement

Supported by : MEXT KAKENHI

References

  1. Chen, Y.Y., Tzeng, H.J., Wei, L.I., Wang, L.H., Oung, J.C. and Shih, H.C. (2005), "Corrosion resistance and mechanical properties of low-alloy steels under atmospheric conditions", Corros. Sci., 47(4), 1001-1021. https://doi.org/10.1016/j.corsci.2004.04.009
  2. JIS G 3114 (2008), Hot-Rolled Atmospheric Corrosion Resisting Steels for Welded Structure, Japan Industrial Standards, Japan.
  3. JIS Z 2382 (1998), Determination of Pollution for Evaluation of Corrosivity of Atmospheres, Japan Industrial Standards, Japan.
  4. Kainuma, S., Yamamoto, Y., Itoh, Y. and Oshikawa, W. (2011), "Prediction method for mean corrosion depth of uncoated carbon steel plate subjected to rainfall effect using Fe/Ag galvanic couple ACM-type corrosion sensor", Corros. Eng., 60(11), 498-503.
  5. Kainuma, S., Yamamoto, Y., Itoh, Y., Hayashi, H. and Oshikawa, W. (2012), "Evaluation method for corrosion depth of uncoated carbon steel and its time-dependence using thickness of corrosion product layer", Corros. Eng., 61(12), 483-494. https://doi.org/10.3323/jcorr.61.483
  6. Kainuma, S., Yamamoto, Y., Itoh, Y., Hayashi, H. and Oshikawa, W. (2014), "Practical method for estimating time-dependent corrosion depth of uncoated carbon steel plate under atmospheric environment using Fe/Ag galvanic couple ACMtype corrosion sensor", Corros. Eng., 63(2), 50-67. https://doi.org/10.3323/jcorr.63.50
  7. Kamimura, T., Hara, S., Miyuki, H., Yamahita, M. and Uchida, H. (2006), "Composition and protective ability of rust layer formed on weathering steel exposed to various environments", Corros. Sci., 48(9), 2799-2812. https://doi.org/10.1016/j.corsci.2005.10.004
  8. Kawabata, F., Matsui, K., Obinata, T., Komori, T., Takemura, M. and Kubo, T. (2004), Steel Plates for Bridge Use and Their Application Technologies, JFE Technical Report No. 2, JFE Steel.
  9. Kihira, H., Senuma, T., Tanaka, M., Nishioka, K., Fujii, Y. and Sakata, Y. (2005), "A corrosion prediction method for weathering steels", Corros. Sci., 47(10), 2377-2390. https://doi.org/10.1016/j.corsci.2004.10.013
  10. Kihira, H., Shiotani, K., Miyuki, H., Nakayama, T., Takemura, M. and Watanabe, Y. (2013), "Systematic interpretation of rust evaluation methods for weathering steels", J. Civil Eng., 745/1-65, 77-87.
  11. Kihira, H., Tanabe, K., Kusunoki, T., Takezawa, H., Tasunami, H., Tanaka, M., Matsuoka, K. and Harada, Y. (2005), "Mathematical modeling to predict long-term corrosion loss to occur on weathering steel", J. Civil Eng., 780/1-70, 71-86.
  12. Ma, Y.T., Li, Y. and Wang, F.H. (2009), "Weatherability of 09CuPCrNi steel in a tropical marine environment", Corros. Sci., 51(8), 1725-1732. https://doi.org/10.1016/j.corsci.2009.04.024
  13. Melchers, R.E. (2008), "A new interpretation of the corrosion loss processes for weathering steels in marine atmospheres", Corros. Sci., 50(12), 3446-3454. https://doi.org/10.1016/j.corsci.2008.09.003
  14. Misawa, T. (2001), "Research progress on corrosion science of iron and steels", Corros. Eng., 50(12), 538-545. https://doi.org/10.3323/jcorr1991.50.538
  15. Misawa, T., Asami, K., Hashimoto, K. and Shimodaira, S. (1974), "Mechanism of atmospheric rusting and protective amorphous rust on low-alloy steel", Corros. Sci., 14(4), 279-289. https://doi.org/10.1016/S0010-938X(74)80037-5
  16. Motoda, S., Suzuki, Y., Shinohara, T., Kojima, Y., Tsujikawa, S., Oshikawa, W., Itomura, S., Fukushima, T. and Izumo, S. (1994). "ACM (atmospheric corrosion monitor) type corrosion sensor to evaluate corrosivity of marine atmosphere", Corros. Eng., 43(10), 550-556. https://doi.org/10.3323/jcorr1991.43.550
  17. Motoda, S., Suzuki, Y., Shinohara, T., Tsujikawa, S., Oshikawa, W., Itomura, S., Fukushima, T. and Izumo, S. (1995), "Corrosive factors of a marine atmosphere analyzed by ACM sensor for 1 year", Corros. Eng., 44(4), 253-265.
  18. Nishikata, A., Suzuki, F. and Tsuru, T. (2005), "Corrosion monitoring of nickel-containing steels in marine atmospheric environment", Corros. Sci., 47(10), 2578-2588. https://doi.org/10.1016/j.corsci.2004.10.009
  19. Nishikata, A., Zhu, Q. and Tada, E. (2014), "Long-term monitoring of atmospheric corrosion at weathering steel bridges by an electrochemical impedance method", Corros. Sci., 87, 80-88. https://doi.org/10.1016/j.corsci.2014.06.007
  20. Schindelholz, E., Kelly, R.G., Cole, I.S., Ganther, W.D. and Muster, T.H. (2013), "Comparability and accuracy of time of wetness sensing methods relevant for atmospheric corrosion", Corros. Sci., 67, 233-241. https://doi.org/10.1016/j.corsci.2012.10.026
  21. Shinohara, T., Motoda, S. and Kshikawa, W. (2005), "Evaluation of corrosivity of atmosphere by ACM type corrosion sensor", Corros. Eng., 54(8), 375-382. https://doi.org/10.3323/jcorr1991.54.375
  22. Wall, F.D., Martines, M.A., Missert, N.A., Copeland, R.G. and Kilgo, A.C. (2005), "Characterizing corrosion behavior under atmospheric conditions using electrochemical techniques", Corros. Sci., 47(1), 17-32. https://doi.org/10.1016/S0010-938X(03)00081-7
  23. Wang, Z.F., Liu, J.R., Wu, L.X., Han, R.D. and Sun, Y.Q. (2013), "Study of the corrosion behavior of weathering steels in atmospheric environments", Corros. Sci., 67, 1-10. https://doi.org/10.1016/j.corsci.2012.09.020
  24. Yamashita, M., Miyuki, H., Matsuda, Y., Nagano, H. and Misawa, T. (1994), "The long-term growth of the protective rust layer formed on weathering steel by atmospheric corrosion during a quarter of a century", Corros. Sci., 36(2), 283-299. https://doi.org/10.1016/0010-938X(94)90158-9