Abstract
Corrosion in wet lime/limestone systems used for flue gas desulfurization in thermal power plants is of great concern. The frequent variations in acidity and in chloride and fluoride ion concentrations experienced by such systems pose a serious threat to the materials of construction. Currently used materials mostly type 316L stainless steel often fail to meet their life expectancy. The present study evaluates the performance of advanced Ni- Cr- Mo alloys 59 and C- 276 in a simulated sulfur dioxide scrubber environment. Accelerated tests showed that high Ni- Cr- Mo alloys have little tendency to leach metal ions such as chromium, nickel, and molybdenum at different impressed potentials. Scanning electron microscopy was used to examine the morphology of pitting attack.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
N. Rajendran, K. Ravichandran, and S. Rajeswari,Anti-Corros. Methods Mater., Vol 42 (No. 1), 1995, p 8
R. Roth,Werkst. Korros., Vol 43, 1993, p 275
D.B. Anderson,Corrosion/81, National Association of Corrosion Engineers, 1981, p 13
A.I. Asphahani, A.F. Nicholas, W.L. Silence, and T.H. Mayor,Werkst. Korros., Vol 40 (No. 7), 1989, p 409
M.X. Cerney,Corros. Rev., Vol 8 (No. 1/2), 1988, p 60
R.R. Skabo, inProc. Conf. Solving Corrosion Problems in Air Pollution Control Equipment, National Association of Corrosion Engineers, 1981, p 2
G.D. Jones, P.F. Ellis, D.M. Anlinker, and D.A. Stewart, “Failure Analysis of FGD System Components,” presented at 9th Symp. Flue Gas Desulfurization (Cincinnati), 1985
M.G. Fontana,Corrosion Engineering, 3rd ed., McGraw-Hill, 1987,p416
N. Rajendran, K. Ravichandran, and S. Rajeswari,Anti-Corros. Methods Mater., Vol 42 (No. 2), 1995, p 9
C.S. Young, inTitanium for Energy and Industrial Applications, D. Eylon, Ed., TMS-AIME, 1981, p 323
N. Rajendran, K. Ravichandran, and S. Rajeswari,Bull. Electro- chem., Vol 9 (No. 1), 1993, p 4
M. Sakashita and N. Sato, inPassivity of Metals, R.R Frankenthal and J. Kevgerh, Ed., Electrochemical Society, 1978, p 479
M.J. Streicher,Corrosion, Vol 30, 1974, p 77
W. Yang, R. Chang, H.-Z. Hua,Corros. Sci., Vol 24, 1984, p 691
V. Mitrovic-Scepanovic and M.B. Ives,J. Electrochem. Soc, Vol 127 (No. 9), 1980, p 1903
D.C. Agarwal and U. Heubner,Proc. 12th Int. Corrosion Con- gress, NACE International, Vol 3A, 1993, p 1226
Y.C. Lu and C.R. Clayton,J. Electrochem. Soc, Vol 132, 1985, p 251
Y.C. Lu, C.R. Clayton, and A.R. Brooks,Corros. Sci., Vol 29, 1989, p 863
Y.C. Lu, M.B. Ives, and C.R. Clayton,Corros. Sci., Vol 35 (No. 1- 4), 1993, p 89
K. Hasimoto, K. Asami, and K. Teramoto,Corros. Sci., Vol 19, 1979, p 3
M. Sivakumar, U. Kamachi Mudali, and S. Rajeswari,Steel Res., Vol 65 (No. 2), 1994, p 79
M. Sivakumar, U. Kamachi Mudali, and S. Rajeswari,J. Mater. Sci. Lett., Vol 13, 1993, p 142
J. Kruger,Int. Mater. Rev., Vol 33 (No. 3), 1988, p 142
T.P. Hoar and W.R. Jacob,Nature, Vol 216, 1967, p 1299
B. MacDougall and M. Cohen,J. Electrochem. Soc, Vol 121 (No. 9), 1974, p 1152
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Rajendran, N., Rajeswari, S. Evaluation of high Ni-Cr-Mo alloys for the construction of sulfur dioxide scrubber plants. JMEP 5, 46–50 (1996). https://doi.org/10.1007/BF02647268
Issue Date:
DOI: https://doi.org/10.1007/BF02647268