Fatigue of SS490A and SS400 Corroded Specimens

SM490A와 SS400 대기부식 시편의 피로 특성 평가

  • Published : 2009.10.30

Abstract

For structural design and diagnosis, quantitative relationship between corrosive degradation and variation of mechanical properties such as tensile strength and fatigue strength is needed. But it is difficult to find experimental data associated with corrosive degradation of structural structures in the literature. In this study, first of all I established the atmospheric corrosion test procedure. And using specimens of SM490A and SS400 on the atmospheric corrosion test bed, I carried out tensile and fatigue tests at regular intervals. And we studied the effect of post-weld heat treatment on the tensile and fatigue behaviour. It is found fatigue strength decreases as the atmospheric corrosion period increases.

References

  1. 김인태, 伊藤 義八(2007), "부식촉진실험을 이용한 강교용 무도장 강재의 부식내구성 평가," 한국강구조학회논문집 Vol. 15, No. 1, pp. 79-86
  2. H$\oe$rl$\acute{e}$, S., Mazaudier, F., Dillmann, Ph., Santarini, G.(2004), "Advances in understanding atmospheric corrosion of iron. II. Mechanistic modelling of wet-dry cycles, Corrosion Science," Vol. 46, No. 6, pp.1431-1465 https://doi.org/10.1016/j.corsci.2003.09.028
  3. Goo, B. C. et al.(2004), "Development of Remaining Life Estimation Techniques for Rolling Stock Structures," KRRI Report No. 04-99, pp.155-191
  4. Cai, J., Cottis, R. A., Lyon, S. B.(1999), "Phenomenological modelling of atmospheric corrosion using an artificial neural network," Corrosion Science, Vol. 41, No. 10, pp.2001-2030 https://doi.org/10.1016/S0010-938X(99)00024-4
  5. ASTM G 50-76(1997), "Standard practice for conducting atmospheric corrosion testing metals"
  6. Oh, C. R, Goo, B. C.(2004), "A Study on the Corrosive behaviour of Rolling Stock Structures by Electric Experiments," Proceedings of the Korean Railway Society Fall Conference
  7. Goo, B. C. et al.(2004), "Development of Remaining Life Estimation Techniques for Rolling Stock Structures," (Ministry of Science and Technology, Report NO.. M1-0203-00-0104, pp. 201-249
  8. 조효남, 전홍민, 선종완, 윤만근(2008), "고속철도 강교량의 부식 피로신뢰성 기반 생애주기비용 분석," 한국철도학회논문집 Vol. 11, No. 1, pp. 107-113
  9. D\acute{i}az, V., L\acute{o}pez, C.(2007), "Discovering key meterological variables in atmospheric corrosion through an artificial neural network model Corrosion Science," Vol. 49, no. 3, pp.949-962 https://doi.org/10.1016/j.corsci.2006.06.023
  10. Jang, S. K., Kim, Y. K., Oh, C. R., Goo, B. C.(2004), "Atmospheric Corrosion of Rolling Stock Structures," Proceedings of the Korean Railway Society Fall Conference
  11. Goo, B. C., Jang, S. K., Kim, Y. K.(2005), "A Study on the Atmospheric Corrosion and Fatigue of Rolling Stock Structures," Proceedings of the Korean Railway Society Spring Conference
  12. Murray, G. M., Schweitzer, G. K., Heacker, F. K.(1988), "Corrosion system modelling using microcomputer programs for free-energy minimization," Corrosion Science, Vol.28, No.9, pp.923-932 https://doi.org/10.1016/0010-938X(88)90039-X
  13. Goo, B. C., Jang, S. K., Kim, Y. K.(2005), "A Study on the Corrosion and Fatigue of Structural materials for Rolling Stock," Journal of the Korean Society for Railway, Vol. 8, No. 4, pp.299-307
  14. Natesan, M., Venkatachari, G., Palaniswamy, N.(2006), "Kinetics of atmospheric corrosion of mild steel, zinc, galvanized iron and aluminium at 10 exposure stations in India," Corrosion Science, Vol. 48, No. 11, pp.3584-3608 https://doi.org/10.1016/j.corsci.2006.02.006
  15. 김민건(2008), "무도장 교량에 사용된는 내후성 강재의 부식 및 피로거동에 미치는 산성안개의 영향," 대한기계학회논문집 A권, Vol. 32, No. 1, pp.13-20 https://doi.org/10.3795/KSME-A.2008.32.1.013
  16. 김인태, 전상혁, 허정옥, 정진환(2009), "지하철 공사현장 환경하의 가시설 강재의 부식두께 감소량 추정," 한국강구조학회논문집 Vol. 21, No. 3, pp.301-310
  17. Katayama, H., Noda, K., Masuda, H., Nagasawa, M., Itagaki, M., Watanabe, K.(2005), "Corrosion simulation of carbon steels in atmospheric environment," Corrosion Science, Vol. 47, No. 10, pp.2599-2606 https://doi.org/10.1016/j.corsci.2004.10.012