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J Chin Soc Corr Pro  1983, Vol. 3 Issue (1): 22-34    DOI:
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EFFECT OF CHROMIUM AND MOLYBDENUM ON THE PROPAGATION OF LOCALIZED CORROSION OF STEELS
Yang Wu(W. Yang)(Shanghai Research Institute of Materials)A. Pour baix(CEBELCOR)
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Abstract  In order to clarify the effect of Cr and Mo on the propagation of localized corrosion of steels, the electrochemical behavior of pure Cr and Mo and of some stainless steels was studied under conditions similar to those existing inside occluded corrosion cells (OCC) of steels.Oxygen-free FeCl_2 and/or CrCl_3 solutions were used for experiments.Cr is passive if pH is higher than ca.1.8.Therefore Cr may retard the propagation of localized corrosion of steels in its early stage.But the hydrolysis of Cr~(3+) may change the pH to even lower values.At such low pH and high Cl~- co centration, Cr is active in the potential range of interest for localized corrosion of steels.Mo is passive in these more acidic conditions and the passivity of Mo in this potential range is attributed to the formation of a film of MoO_2, which is very stable and protective.Mo is thus effective to retard the propagation of localized corrosion of steels in its more advanced stage.
Received:  25 February 1983     
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Yang Wu(W. Yang)(Shanghai Research Institute of Materials)A. Pour baix(CEBELCOR). EFFECT OF CHROMIUM AND MOLYBDENUM ON THE PROPAGATION OF LOCALIZED CORROSION OF STEELS. J Chin Soc Corr Pro, 1983, 3(1): 22-34.

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[1] Z. Szklarska-Smialowska, Corrosion, 27, 6 ,223 ( 1971 )
[2] A, John Sedrinks, Corrosion of Stainless Steels, John Wiley & Sons, Inc . ,63~109 ( 1979)
[3] B. F. Brown, Corrosion, 26, 8, 249(1970)
[4] M. Pourbaix, Corrosion, 25,6, 267(1969)
[5] B. F. Brown, C. T. Fujii and E. P. Dahlberg, J. Electrochem. Soc.,116, 2, 218( 1969)
[6] M, H. Peterson, T. J. Lennox Jr. and E. E. Groover, Materials Protection, 3, 1, 23 ( 1970 )
[7] M. Marek and R. F. Hochman, Corrosion, 26, 1, 5(1970)
[8] B. F. Brown, Repports Techniques CEBELCOR, 112, 170(1970)
[9] H. R. Baker, M.C.Bloom, R. N. Bolster and C. R. Singleterry, Corrosion, 26,10, 420 ( 1970 )
[10] J. A. Smith, M. H. Peterson and B. F. Brown, Corrosion, 26, 12, 539(1970)
[11] G. Sandoz, C. T. Fujii and B. F. Browon, Corrosion Science, 10, 12, 839 ( 1970)
[12] M. Pourbaix, The Theory of Stress Corrosion Cracking in Alloys, Ed. J.C.Scully,NATO, 17~63(1971)
[13] A. Pourbaix, Corrosion, 27, 11, 449 ( 1971 )
[14] B. E. Wilde and E. William, Electrochimica Acta, 16, 11, 1971(1971)
[15] Z. Szklarska-Smialowska and J, Mankowski, Corrosion Seience , 12, 12, 925(1972)
[16] T. Suzuki, M, Yamaka and Y. Kitamura, Corrosion, 29, 1, 18(1973)
[17] M. Pourbaix, Localized Corrosion, NACE-3, Ed, R. W. Staehle et al., 12(1974)
[18] C. T. Fujii, 同上, 144(1974)
[19] F. D. Begar and C. T. Fujii, NRL Report 7690, Washington D. C. ( 1974)
[20] C. T. Fujii, Repports Techniques CEBELCOR, 123, 213(1974)
[21] M. Pourbaix, Repports Techniques CEBELCOR, 127, 230(1975)
[22] J. Monkowski and Z. Szklarska-Smialowska, Corrosion seience, 15, 8, 493 ( 1975)
[23] M. Pourbaix, J. Electrochem. Soc., 123, 2, 25c ( 1976)
[24] L. Sathler, J. Van Muylder, R. Winand and M.Pourbaix, Proceedings of 7th International Congress on Metallic Corrosion, 705 ( 1978 )
[25] E. D. Verink Jr. and M. Pourbaix, Corrosion, 27, 12, 495(1971)
[26] M. Pourbaix, Atlas of Electrochemical Equilibria in Aqueous Solutions, Pergamon Press, 262, 273 ( 1966 )
[27] D, D. Wagman et al.. Selected Values of Chemical Thermodynamic Properties, NBS Technical Note 270-3 ( 1968 ) , and 270-4 ( 1969 )
[28] W. Yang(杨武) and A. Pourbaix, Repports Techniques CEBELCOR, 141, 242 ( 1981 )
[29] D. D. Macdonald, B. C. Syrett and S. S. Wing, Corrosion, 35, 1, 1(1979)
[30] K. Sugimoto and Y. Sawada, Corros. Sci., 17, 5, 425 ( 1977)
[31] A, A. Pozdeeva, E. I. Antonovskaya and A. M. Sukhotin, Corros. Sci.,6, 3/4, 149 ( 1966 )
[32] M. M. Goldberg, Private Communication, ( 1978. 9)
[33] H. Kleykamp and A. Supawan, J. Less-Common Metals, 63, 2, 237 ( 1979)
[34] K. Sugimoto and Y. Samada, Corrosion, 32, 9, 347(1976)
[35] T. Kodama and J. R. Ambrose, Corrosion, 33, 5, 155(1977)
[36] H. Okada, H. Ogawa, I. Jtoh and H. Omata, Passivity and its Breakdown on Iron and Iron Base Alloys, Ed. R. W. Stae hie and H. Okada, NACE, 82(1976)
[37] H. Ogawa, H. Omata, I. Itoh and H. Okada, Corrosion, 34, 2, 52(1978)
[38] J. N. Wanklyn, Corros. Sci., 21, 3, 211(1981)
[39] K. Hashimoto, K. Asami and K. Teramoto, Corros. Sci., 19, 1, 3(1979)
[40] K. Asami, M, Naka, K. Hashimoto and T. Masumoto, J. Electrochem. Soc., 127,10, 2130 ( 1980)
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