DOI QR코드

DOI QR Code

Correlation between Carbon Steel Corrosion and Atmospheric Factors in Taiwan

  • Lo, C.M. (Department of Environmental Engineering, National Chung Hsing University, Taichung) ;
  • Tsai, L.H. (Harbor & Marine Technology Center, Institute of Transportation, Ministry of Transportation) ;
  • Hu, C.W. (Harbor & Marine Technology Center, Institute of Transportation, Ministry of Transportation) ;
  • Lin, M.D. (Department of Environmental Engineering, National Chung Hsing University, Taichung)
  • 투고 : 2017.08.17
  • 심사 : 2018.02.09
  • 발행 : 2018.04.30

초록

Taiwan has a typical marine climate featuring perennial high-temperature and dampness. This climate, together with the emission of various industrial corrosive waste gases in recent years, contributes a lot to the corrosion of metal materials. In this study, samples of carbon steel exposed to various atmospheres in Taiwan were analyzed to investigate the impacts of atmospheric factors on carbon steel corrosion. Carbon steel samples were collected from 87 experimental stations between 2009 and 2012. Statistical analysis was employed to investigate the correlations between the carbon steel corrosion situations and the atmospheric factors such as concentrations of sulfur dioxide or chloride, exposure time, rainfall, etc. The results indicate that for samples from industrial areas, the sulfur dioxide concentration and exposure time during fall and winter are significantly correlated to the condition of the carbon steel corrosion. However, for samples from coastal zones, the significant correlated factors are chloride concentration and wetting time during winter. The results of this study are useful for the development of carbon steel corrosion prediction models.

키워드

참고문헌

  1. C. M. Lo, K. C. Chen and C. L. Ko, A study on atmospheric corrosion factors survey and corrosion environments classification (1/4), pp. 3-1-7-6, Institute of Transportation, Ministry of Transportation and Communications Press, Taiwan (2011).
  2. C. M. Lo, K. C. Chen and C. L. Ko, A study on atmospheric corrosion factors survey and corrosion environments classification (2/4), pp. 3-1-7-6, Institute of Transportation, Ministry of Transportation and Communications Press, Taiwan (2012).
  3. J. T. Chen, System Analysis: An introduction to and application of SPSS for Windows, 4th ed., pp. 1 - 752, Wu-Nan Books, Taiwan (2000).
  4. Y. M. Chen, Introduction to multivariate analysis, pp. 1 - 324, Chuan-Wei Books, Taiwan (2002).
  5. S. U. Chen, Multivariate analysis, 3rd ed., pp. 1-710, Hwa-Tai Books, Taiwan (2004).