Corrosion of ferritic and ferritic-martensitic steels in NaCl-KCl-VCl 2 melts / Polovov I.B., Vinogradov D.A., Abramov A.V., Shak A.V., Volkovich V.A., Rebrin O.I., Griffiths T.R. // ECS Transactions. - 2012. - V. 50, l. 11. - P. 699-709.

ISSN:

19385862

Type:

Conference Paper

Abstract:

The corrosion resistance of ferritic (08Kh17T) and ferriticmartensitic (12Kh13) type steels was investigated at 750 °C in NaCl-KCl-VCl2 melts. The mechanism of corrosion of 12Kh13 ferritic-martensitic steel in NaCl-KCl-VCl2 melts includes two parallel processes: formation of new excessive phases inducing Fe3C (σ-phase)|melt|steel microgalvanic pairs, and reaction of most electronegative steel components (Mn and Cr) with V3+ ions formed due to disproportion of V2+. Contacting samples of 08Kh17T with NaCl-KCl-VCl2 melts resulted in no structural changes in the steel samples. In this case the mechanism of corrosion involves only one stage: disproportion reaction of V(II) with the formation V-Fe alloy and V3+ ions and further oxidation of chromium in the steel by V(III). It was shown, that the presence of a suitable reducing agent in the contact with the melt (for example, metallic vanadium) can prevent the steel destruction. Copyright © 2012 by The Electrochemical Society.

Author keywords:

Index keywords:

Disproportion reactions; Ferritic; Ferritic-martensitic steels; Mechanism of corrosion; Oxidation of chromium; Parallel process; Steel components; Steel samples; Alloy steel; Corrosion resistance; Fer

DOI:

10.1149/05011.0699ecst

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https://www.scopus.com/inward/record.uri?eid=2-s2.0-84885825356&doi=10.1149%2f05011.0699ecst&partnerID=40&md5=fab4528308acb18960872249d88105e6

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Link	https://www.scopus.com/inward/record.uri?eid=2-s2.0-84885825356&doi=10.1149%2f05011.0699ecst&partnerID=40&md5=fab4528308acb18960872249d88105e6
Affiliations	Department of Rare Metals and Nanomaterials, Ural Federal University, Ekaterinburg, 620002, Russian Federation; Redston Trevor Consulting, Ltd., Leeds, LS17 8RF, United Kingdom
References	Abramov, A.V., Polovov, I.B., Volkovich, V.A., Rebrin, O.I., Denisov, E.I., Griffiths, T.R., (2012) ECS Trans, , in press; Goldstein, M.I., Grachev, S.V., Veksler, Yu.G., (1985) Special Steels, p. 118. , Metallurgiya, Moscow (in Russian); Isfahany, N., Saghafian, H., Borhani, G., (2011) J. Alloy Comp., 509, p. 3931; Armas, A.F., Avalos, M., Alvarez-Armas, I., Petersen, C., Schmitt, R., (1998) J. Nucl. Mat., 258-263, p. 1204; Candelaria, A.F., Pinedo, C.E., (2003) J. Mat. Sci. Let., 22, p. 1151; Stawström, C., Hillert, M., (1969) J. Iron Steel Inst., 207, p. 77; Devine, T.M., Ritter, A.M., (1983) Metall. Trans. A, 14, p. 1721; Fritz, J.D., Franson, I.A., (1997) Mat. Perform., 36, p. 57; Padilha, A.F., Rios, R.P., (2002) ISIJ International, 42, p. 325; Warmelo, M., Nolan, D., Norish, J., (2007) Mat. Sci. Eng. A, 464, p. 157; Baltazar, H., (2011) Metall. Mat. Trans. A, 42, p. 3115; Iluschenko, N.G., Anfinogenov, A.I., Shurov, N.I., (1991) Interaction of Metals in Ionic Melts, p. 104. , Nauka, Moscow (in Russian); Baraboshkin, A.N., (1976) Electrocrystallization of Metals from Molten Salts, p. 58. , Nauka, Moscow (in Russian); Polovov, I.B., Abakumov, A.V., Rebrin, O.I., Chernyshov, M.V., Volkovich, V.A., Griffiths, T.R., (2007) ECS Trans, 3 (35), p. 589; Devine, T.M., Ritter, A.M., Drummond, B.J., (1981) Met. Trans. A, 12, p. 2063; Gordon, W., Van Bennekom, A., (1996) Mat. Sci. Techn., 12, p. 126; Sung, J.H., Kong, J.H., Yoo, D.K., On, H.Y., Lee, D.J., Lee, H.W., (2008) Mat. Sci. Eng. A, 489, p. 38; Bond, A.P., (1969) Met Soc of AIME-Trans., 245, p. 2127; Ogwu, A.A., Davies, T.J., (1997) Scrip. Mat., 37, p. 259; Sorokin, V.G., Gevas'ev, M.A., (2008) Steels and Lloys, p. 452. , Intermet Engineering, Moscow (in Russian); Abramov, A.V., Polovov, I.B., Volkovich, V.A., Rebrin, O.I., Griffiths, T.R., May, I., Kinoshita, H., (2010) ECS Trans, 33 (7), p. 277
Correspondence Address	Department of Rare Metals and Nanomaterials, Ural Federal University, Ekaterinburg, 620002, Russian Federation
Sponsors	Physical and Analytical Electrochemistry;Electrodeposition;Energy Technology
Conference name	18th International Symposium on Molten Salts and Ionic Liquids - 222nd ECS Meeting
Conference date	7 October 2012 through 12 October 2012
Conference location	Honolulu, HI
Conference code	100229
ISBN	9781607683599
Language of Original Document	English
Abbreviated Source Title	ECS Transactions
Source	Scopus