Corrosion Science and Technology

  • 제7권5호
  • /
  • Pages.243-251
  • /
  • 2008
  • /
  • 1598-6462(pISSN)
  • /
  • 2288-6524(eISSN)
한국부식방식학회 (The Corrosion Science Society of Korea)
권호 표지

Interaction of Mechanics and Electrochemistry for Magnesium Alloys

  • Han, En-Hou (Institute of Metal Research, Chinese Academy of Sciences) ;
  • Wang, JianQiu (Institute of Metal Research, Chinese Academy of Sciences) ;
  • Ke, Wei (Institute of Metal Research, Chinese Academy of Sciences)
  • 발행 : 2008.10.01
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

Magnesium alloys become popular research topic in last decade due to its light weight and relatively high strength-to-weight ratio in the energy aspiration age. Almost all structure materials are supposed to suspend stress. Magnesium is quite sensitive to corrosive environment, and also sensitive to environmental assisted cracking. However, so far we have the limited knowledge about the environmental sensitive cracking of magnesium alloys. The corrosion fatigue (CF) test was conducted. Many factors' effects, like grain size, texture, heat treatment, loading frequency, stress ratio, strain rate, chemical composition of environment, pH value, relative humidity were investigated. The results showed that all these factors had obvious influence on the crack initiation and propagation. Especially the dependence of CF life on pH value and frequency is quite different to the other traditional structural metallic materials. In order to interpret the results, the electrochemistry tests by polarization dynamic curve and electrochemical impedance spectroscopy were conducted with and without stress. The corrosion of magnesium alloys was also studied by in-situ observation in environmental scanning electron microscopy (ESEM). The corrosion rate changed with the wetting time during the initial corrosion process. The pre-charging of hydrogen caused crack initiated at $\beta$ phase, and with the increase of wetting time the crack propagated, implying that hydrogen produced by corrosion reaction participated in the process.

키워드

참고문헌

  1. G. L. Makar and J. Kruger, Inter. Mater. Rev., 38, 138 (1993) https://doi.org/10.1179/095066093790326320
  2. J. D. Hanawalt, C. E. Nelson, and J. A. Peloubet, Trans. Am. Inst. Mining Met. Eng., 147, 273 (1942)
  3. S. Mathieu, C. Rapin, J. Steinmetz, and P. Steinmetz, Corros. Sci., 45, 2741 (2003) https://doi.org/10.1016/S0010-938X(03)00109-4
  4. R. Ambat, N. N. Aung, and W. Zhou, Corros. Sci., 42, 1433 (2000) https://doi.org/10.1016/S0010-938X(99)00143-2
  5. N. LeBozec, M. Jonsson, and D. Thierry, Corrosion 60, 356 (2004) https://doi.org/10.5006/1.3287743
  6. J. H. Nordien, S. Ono, N. Masuko, and K. Nisancioglu, J. Electrochem. Soc., 142, 3320 (1995) https://doi.org/10.1149/1.2049981
  7. P. Schmutz, V. Guillaumin, R. S.Lillard, J. A.Lillard, and G. S. Frankel, J. Electrochem. Soc., 150, B99 (2003) https://doi.org/10.1149/1.1554721
  8. G. Baril and N. Pebere, Corros. Sci., 43, 471 (2001) https://doi.org/10.1016/S0010-938X(00)00095-0
  9. G. Baril, C. Blanc, and N. Pebere, J. Electrochem. Soc., 148, B489 (2001) https://doi.org/10.1149/1.1415722
  10. N. Pebere, C. Riera, and F. Dabosi, Electrochim. Acta, 35, 555 (1990) https://doi.org/10.1016/0013-4686(90)87043-2
  11. G. Song, A. Atrens, X. Wu, and B. Zhang, Corros. Sci., 40, 1769 (1998) https://doi.org/10.1016/S0010-938X(98)00078-X
  12. G. Song, A. Atrens, and M. Dargusch, Corros. Sci., 41, 249 (1999)
  13. O. Lunder, J. E. Lein, T. Kr. Aune, and K. Nisancioglu, Corrosion, 45, 741 (1989) https://doi.org/10.5006/1.3585029
  14. L. Fairman and H. Bray, Corros. Sci., 5, 711 (1965) https://doi.org/10.1016/S0010-938X(65)80027-0
  15. G. Song, A. Atrens, D. John, X. Wu, and J. Nairn, Corros. Sci., 39, 1981 (1997) https://doi.org/10.1016/S0010-938X(97)00090-5
  16. A. Eliezer, E. M. Gutman, E. Abramov, and Ya. Unigovski, Journal of Light Metals, 1, 179 (2001) https://doi.org/10.1016/S1471-5317(01)00011-6
  17. Ya. Unigovski, A. Eliezer, E. Abramov, Y. Snir, and E. M. Gutman, Materials Science and Engineering A, 360, 132 (2003) https://doi.org/10.1016/S0921-5093(03)00409-X
  18. R. G. Song, C. Blawert, W. Dietzel, and A. Atrens, Materials Science and Engineering: A, 39, 308 (2005)
  19. Jian Chen, Jianqiu Wang, Enhou Han, and Wei Ke, Corrosion Science, 49, 1625 (2007) https://doi.org/10.1016/j.corsci.2006.09.003
  20. Jian Chen, Jianqiu Wang, Enhou Han, and Wei Ke, Material Sciences Forum, 546, 537 (2007)
  21. Jian Chen, Jianqiu Wang, Enhou Han, and Wei Ke, Electrochim. Acta, 52, 3299 (2007) https://doi.org/10.1016/j.electacta.2006.10.007
  22. Jian Chen, Jianqiu Wang, Enhou Han, Junhua Dong, and Wei Ke, Material and Corrosion, 57, 789 (2006) https://doi.org/10.1002/maco.200503959
  23. Romgchang Zeng, Enhou Han, and Wei Ke, Material Sciences Forum, 546, 409 (2007)
  24. Huamao Zhou, Jianqiu Wang, Qishan Zang, Enhou Han, and Wei Ke, Material Sciences Forum, 546, 579 (2007)
  25. C. M. Houston, Eng Fracture Mech,, 8, 315 (1976) https://doi.org/10.1016/0013-7944(76)90012-6