Issue

Vol. 31 No. 11 (2019): Vol 31 Issue 11

Copyright (c) 2019 AJC

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

Morphological Changes Occurred During Long Time Atmospheric Corrosion Process of Mild Steel and their Effect on Mechanical Properties

https://doi.org/10.14233/ajchem.2019.22164
P. Muralidhar
RINL, Visakhapatnam Steel Plant, Visakhapatnam-530031, India & Department of Inorganic and Analytical Chemistry, Andhra University, Visakhapatnam-530003, India
G. Satyanarayana
Department of Inorganic and Analytical Chemistry, Andhra University, Visakhapatnam-530003, India
G. Nageswara Rao
Department of Inorganic and Analytical Chemistry, Andhra University, Visakhapatnam-530003, India

Corresponding Author(s) : G. Satyanarayana

satya.bic@gmail.com

Asian Journal of Chemistry, Vol. 31 No. 11 (2019): Vol 31 Issue 11

Abstract

The present work, involves the analysis of a long time corroded steel channel (MC 150 having dimensions 150 cm × 75 cm × 5.7 cm, a nominal weight of 16.8 kg/m, which was rolled from a fully killed continuous cast steel blooms) meant for constructing huge steel structures was performed. The analysis of this typical corrosion was done in a different direction to know the morphological changes occurred during the long time atmospheric corrosion periods of wet dry conditions. The extent of deterioration of mechanical properties in these structural components may reduce the life span of particular component. The focus of this present study is to analyze the reasons for the splitting of corrosion product layers during the long time atmospheric corrosion conditions, which resulted in the drastic deterioration of mechanical properties. The XRD analysis of delaminated layers was also performed. The physico-chemical changes occurred in the process of long time atmospheric corrosion were also investigate. It is found that pitting is the major contributor for the formation, growth, delamination of corrosion product layers during the long time atmospheric corrosion process, which resulted in the drastic reduction of mechanical properties.

Keywords

Delaminated corrosion product Rolling direction Pit growth Dissolution pattern
Muralidhar, P., Satyanarayana, G., & Rao, G. N. (2019). Morphological Changes Occurred During Long Time Atmospheric Corrosion Process of Mild Steel and their Effect on Mechanical Properties. Asian Journal of Chemistry, 31(11), 2492–2496. https://doi.org/10.14233/ajchem.2019.22164
Download Citation
Endnote/Zotero/Mendeley (RIS)
BibTeX
References
  1. A.A.M.T. Adikari, R.G.N. De S. Munasinghe and S. Jayatileke, Engineer, 47, 75 (2014); https://doi.org/10.4038/engineer.v47i2.6869.
  2. M. Morcillo, B. Chico, I.Díaz, H.Cano and D. de la Fuente, Corros. Sci., 77, 6 (2013); https://doi.org/10.1016/j.corsci.2013.08.021.
  3. M. Morcillo, I. De la Fuente, I. Díaz and H. Cano, Rev. Metal., 47, 426 (2011); https://doi.org/10.3989/revmetalm.1125.
  4. C. Rémazeilles and P. Refait, Corros. Sci., 49, 844 (2007); https://doi.org/10.1016/j.corsci.2006.06.003.
  5. C. Rémazeilles and P. Refait, Corros. Sci., 50, 856 (2008); https://doi.org/10.1016/j.corsci.2007.08.017.
  6. A.R. Mendoza and F. Corvo, Corros. Sci., 42, 1123 (2000); https://doi.org/10.1016/S0010-938X(99)00135-3.
  7. C.H. Gao, H.N. Wang and J.X. Peng, Highways Automot. Appl., 1, 152 (2012).
  8. F. Menan and G. Henaff, Int. J. Fatigue, 31, 1684 (2009); https://doi.org/10.1016/j.ijfatigue.2009.02.033.
  9. Q. Wu and Y. Yuan, Experimental Study on Degradation Law of Mechanical Properties of Corroded Steel Bar, China Civil Engineering Society, 4, pp. 42-46 (2008).
  10. P. Chotickai and M.D. Bowman, J. Bridge Eng., 11, 71 (2006); https://doi.org/10.1061/(ASCE)1084-0702(2006)11:1(71).
  11. L. Balsamo, R. Betti and H. Beigi, J. Sound Vibrat., 333, 4526 (2014); https://doi.org/10.1016/j.jsv.2014.04.062.
  12. X.W. Ye, Y.Q. Ni, K.Y. Wong and J.M. Ko, Eng. Struct., 45, 166 (2012); https://doi.org/10.1016/j.engstruct.2012.06.016.
  13. H. Xu, Fatigue Strength, Higher Education Press (1988).
  14. J. Cairns, G.A. Plizzari, Y. Du, D.W. Law and C. Franzoni, ACI Mater. J., 102, 256 (2005).
  15. W. Liu, W. Li and Q. Ma, HVM Prestress. Technol., 2, 34 (2001).
  16. F. Li, Y. Yuan, J. Du and H. Ma, J. Southeast Univ., 39, 340 (2009).
  17. Y. Zheng, Y. Ou and L. An, Mod. Transp. Technol., 2, 33 (2005).
  18. S.C. Barton, G.W. Vermaas, P.F. Duby, A.C. West and R. Betti, J. Mater. Civ. Eng., 12, 33 (2000); https://doi.org/10.1061/(ASCE)0899-1561(2000)12:1(33).
  19. S.-I. Nakamura, K. Suzumura and T. Tarui, Struct. Eng. Int., 14, 50 (2004); https://doi.org/10.2749/101686604777964305.
  20. S. Nakamura and K. Suzumura, J. Construct. Steel Res., 65, 269 (2009); https://doi.org/10.1016/j.jcsr.2008.03.022.
  21. F. Xu, Y. Chen, X. Zheng, R. Ma and H. Tian, Materials, 12, 753 (2019); https://doi.org/10.3390/ma12050753.
  22. W.J. Yang, P. Yang, X.M. Li and W.L. Feng, Mater. Corros., 63, 401 (2012); https://doi.org/10.1002/maco.201005921.
  23. S. Wu, H. Chen, H.L. Ramandi, P.C. Hagan, A. Crosky and S. Saydam, Corros. Sci., 132, 234 (2018); https://doi.org/10.1016/j.corsci.2017.12.014.
Read More
Author biographies is not available.
Download
PDF
Statistic
Read Counter : 0 Download : 0