Variation of the electrochemical surface parameters stainless steel at the transition from passivity to pitting is studied. The evolution of parameters of the equivalent electrical circuit is established. It is shown that the results of impedance spectroscopy can be used for aims outrunning monitoring pitting.
нержавеющая сталь, пассивность, питтинг, электрохимическая импедансная спектроскопия, stainless steel, passivation, pitting, electrochemical impedance spectroscopy
1. Khatak, H.S Corrosion of Austenitic. Mechanism, mitigation and monitoring/ H.S Khatak, Baldev Raj // Alpha Science International Ltd. 2002. - P.385.
2. Gorodnichiy A.P. Kachestvennyy elektrohimicheskiy metod ocenki pittingostoykosti vysokolegirovannyh staley / A. P. Gorodnichiy, E. V. Habarova, A. I. Efremkina // Zaschita metallov. - 1993. - T.29, №1. - S. 44-49.
3. Tkacheva, V.E. Monitoring passivnogo sostoyaniya hromonikelevyh staley v hloridsoderzhaschih sredah: avtoref. dis….kand. teh. nauk / V.E. Tkacheva. - Kazan', 2009. -18 s.
4. Pat. 2382352 Rossiyskaya Federaciya, MPK 7 G01N17/02 Sposob diagnostirovaniya avariynogo sostoyaniya rezervuarov [Tekst]/ Zhuravlev B.L., Tkacheva V.E., Kaydrikov R.A.; zayavitel' i patentoobladatel': FBGOU VPO KNITU (RU). - № 2008151242; zayavl. 26.02.2008; opubl. 23.12.2008. Byul.№. 2.
5. Strutt, J. E. Recent developments in electrochemical corrosion monitoring techniques / J. E. Strutt, M. J. Robinson, W. N. Turner // Chem. Eng. - 1981. - №11. - P. 567-572.
6. S.S Vinogradova, V.E. Tkacheva, B.L.Zhuravlev, R.A. Kaydrikov, Vestnik Kazanskogo tehnologicheskogo universiteta, 3, 78 - 80 (2008)
7. S. Krakowiak, K. Darowicki, and P. Slepski, Impedance investigation of passive 304 stainless in pit pre-initiation state, Electrochim. Acta, 50(2005), No.13, p.2699.
8. M.A. Amin, S.S. Abd El Rehin, and E.E.F.El Sherbini, AC and DC studies of the pitting corrosion of Al in perchlorate solutions, Electrochim. Acta, 51(2006), No.22, p.4754.
9. J.L. Polo, E. Cano, and J.M. Bastidas, An impedance study on the influence of molybdenum in stainless steel pitting corrosion, J. Electroanal. Chem., 537(2002), No.1-2, p.183.
10. A. Kocijan, Č. Donik, and M. Jenko, Electrochemical and XPS studies of the passive film formed on stainless steels in borate buffer and chloride solutions, Corros. Sci., 49(2007), No.5, p.2083.
11. Y.M. Tang, Y. Zuo, and X.H. Zhao, The metastable pitting behaviors of mild steel in bicarbonate and nitrite solutions containing Cl, Corros. Sci., 50(2008), No.4, p.989.
12. Z. Jia, C. Du, C. Li, Z. Yi, X. Li, Study on pitting process of 316L stainless steel by means of staircase potential electrochemical impedance spectroscopy, International Journal of Minerals, Metallurgy and Materials V. 18, № 1, 2011, p. 48.
