Effect of Silicon on the Corrosion Behavior of Powder-Processed Phosphoric Irons


The corrosion behaviour of phosphoric irons (i.e. Fe-P alloys containing low phosphorous in the range 0.1 to 0.7 wt. % ) containing chromium with/without addition of silicon, prepared by powder forging route was studied in different environments. The various environments chosen were acidic (0.25 M H2SO4 solution of pH 0.6), neutral/marine (3.5 % NaCl solution of pH 6.8) and alkaline (0.5M Na2CO3 + 1.0 M NaHCO3 solution of pH 9.4). The corrosion studies were conducted using Tafel Extrapolation and Linear Polarization techniques. The studies compare electrolytic Armco iron with phosphoric irons. It was observed that silicon improved the resistance to corrosion in all the environments. Corrosion rates were higher in acid medium, minimal in alkaline medium and low in neutral solution.

Share and Cite:

Y. Mehta, S. Trivedi, K. Chandra and P. Mishra, "Effect of Silicon on the Corrosion Behavior of Powder-Processed Phosphoric Irons," Journal of Minerals and Materials Characterization and Engineering, Vol. 9 No. 10, 2010, pp. 855-864. doi: 10.4236/jmmce.2010.910062.

Conflicts of Interest

The authors declare no conflicts of interest.


[1] M. G. Fontana, Corrosion Engineering, McGraw-Hill International Edition, 3rd ed., pp. 23–27 and pp. 499–503.
[2] P. Lorbeer, and W. J. Lorenz, Electrochim. Acta, 25(1980) 375.
[3] R. Vera, B. M. Rosales, and C. Tapia, Corros. Sci., 45(2003) 321.
[4] R. N. Parkins, in Environment-Induced Cracking of Metals (Edited by Gangloff, R. P. and Ives, M. B.), NACE, Houston, (1990) 1.
[5] H. Stencel, H. Vehoff, and P. Neumann, in Chemistry and Physics of Fracture (Edited by Latanision, R. M. and Jones, R. H.), Martinus Nijhoff, Dordrecht (1987) 652.
[6] Flis, J., Corrosion of Metals and Hydrogen-Related Phenomena (Edited by Flis J.), PWN and Elsevier, Amsterdam (1991) 50.
[7] T. Nishimura, Materials Transactions, No. 6, 48 (2007) 1438.
[8] T. Nishimura, Sci. Technol. Adv. Mater. 9 (2008) 1.
[9] R. O. Ritchie, M. H. Cedeno, V. F. Zackay Castro, and E. R. Parker, Metallurgical and Materials Transactions A, Number 1, 9 (1978) 35.
[10] R. Balasubramaniam, Corros. Sci., 42 (2000) 2103.
[11] R. Balasubramaniam, and A. V. Ramesh Kumar, Corros. Sci., 42 (2000) 2085.
[12] G. Sahoo, and R.Balasubramaniam, Journal of ASTM International No. 5, 5 (2008) 1.
[13] Y. Mehta, S. Trivedi, K. Chandra, P.S. Mishra, The Journal of Minerals and Materials Characterization and Engineering, No. 7, 8 (2009) 501
[14] S. Trivedi, Y. Mehta, K. Chandra, P.S. Mishra 2009, J. Mater. Process. Technol., Issue 1, 210 ( 2010) 85
[15] J. Das, K. Chandra, P.S. Misra, B. Sarma, Mater. Sci. and Engg. A 479 (2008) 164
[16] ASTM Standard G3-89, Standard Practice for Conventions Applicable to Electrochemical Measurements in Corrosion Testing. Annual Book of ASTM Standards, ASTM International, West Conshohocken, PA, Vol. 3.02, 2006.
[17] ASTM Standard G102-89, Standard Practice for Calculation of Corrosion Rates and Related Information from Electrochemical Measurements. Annual Book of ASTM Standards, ASTM International, West Conshohocken, PA, Vol. 3.02, 2006.
[18] F. P. Ijsseling, Br. Corros. J., London, 21 (1986) 95.
[19] W. S. Tait,, An Introduction to Electrochemical Corrosion Testing for Practicing Engineers and Scientists, PairODocs Publications, Racine, WI, 1994.
[20] Jone D.A., Principles and Prevention of Corrosion, Macmillan Publishing Company, New York, (1992)145.
[21] H. J. Flitt, and D. Schweinsberg, Corros. Sci., 47 (2005) 3034.
[22] E. McCafferty, Corros. Sci., 47 (2005) 3202.
[23] S. C. Dexter, Handbook of Oceanographic Engineering Materials, John Wiley & Sons, New York, (1979) 111.
[24] A. Davydov, V. Rybalka, L. Beketaeva, G. Engelhardt, P. Jayaweera, and D. Macdonald, Corros. Sci., 47(2005) 195.
[25] E. Sikora, A. Sadkowski, and J. Flis, Electrochimica Acta, No. 16, 38 (1993) 2443.
[26] O. Kubaschewski, Iron—Binary phase diagrams, Berlin: Springer Verlag, (1982) 84.

Copyright © 2021 by authors and Scientific Research Publishing Inc.

Creative Commons License

This work and the related PDF file are licensed under a Creative Commons Attribution 4.0 International License.