An Overview of Metal Dusting in Synthesis Gas Environments


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This paper gives an overview of the different processes of metal dusting (MD) that operate on low and high alloyed iron and nickel base alloys exposed in CO+H2–containing environments with or without water vapour. MD of pure metals like iron and nickel occur with a solely carbon-induced corrosion mechanism. However, in high alloyed materials with strong oxide formers such as Cr and Al, a more complex MD-process takes place which involves both carbon and oxygen in close collaboration. The “alloyed” carbides, i.e normally Cr-containing carbides, formed in such materials are thermodynamically stable with respect to the carbon activity. However, in the reaction front of a MD-pit with non-protective spinel oxide, they destabilise and dissolve due to the influence of the low oxygen activity determined by CO-dissociation. Based on recent results in the field of MD a chart with tentative MD mechanisms is presented as a function of alloy composition and temperature.



Materials Science Forum (Volumes 522-523)

Edited by:

Shigeji Taniguchi, Toshio Maruyama, Masayuki Yoshiba, Nobuo Otsuka and Yuuzou Kawahara




P. Szakàlos, "An Overview of Metal Dusting in Synthesis Gas Environments", Materials Science Forum, Vols. 522-523, pp. 571-580, 2006

Online since:

August 2006





[1] E. Camp, C. Phillips, and L. Gross: Corr., Vol. 1 (1945), p.149.

[2] F.A. Prange: Corr., Vol 15, No. 12 (1959), p. 619t.

[3] F. Eberle and R.D. Wylie: Corr., Vol 15, No 12 (1959), p. 622t.

[4] W.B. Hoyt and R.H. Caughey: Corr., Vol. 15 (1959), p.627.

[5] B. Hopkinson and H. Copson: Corr., Vol 15, No. 12 (1959), p. 608t.

[6] A. Hultgren and M. Hillert:, Jernkont. Ann. 137: 7 (1953).

[7] R.F. Hochman and J.H. Burson: Am. petroleum inst., division of refinery, Proc., Vol. 46, (1966) p.331.

[8] Z. Zeng, K. Natesan and V.A. Maroni: Oxidation of Metals, Vol. 58: 1 (2002), p.147.

[9] H.J. Grabke: Mat. and Corr., Vol. 49, (1998), p.303.

[10] E. Pippel, J. Woltersdorf, H.J. Grabke and S. Strauss: Steel Research, Vol. 66, No 7, (1995), p.217.

[11] E. Pippel, J. Woltersdorf and R. Schneider: Mat. and Corr., Vol. 49, No 5 (1998), p.309.

[12] P. Szakálos, R. Pettersson and S. Hertzman: Corr. Sci, Vol. 44, No 10 (2002), p.2253.

[13] P. Szakálos: Materials and Corrosion, Vol 54, No. 10 (2003), p.752.

[14] P. Szakálos: Mechanisms of metal dusting, (Doctoral Thesis, ISBN 91-7283-713-6, Stockholm 2004).

[15] C.M. Chun, J.D. Mumford and T.A. Ramanarayanan: J. Electrochem. Soc. 149 7 (2002), p. B348.

[16] A. Schneider: Corro Sci. Vol. 44, no. 10 (2002), p.2353.

[17] B. Schmid; J. H. Walmsley, Ø. Grong and R. Ødegård: Met. and Mat. Trans. A (USA), vol. 34A, No. 2 (2003), p. 345A.

[18] C.M. Chun, J.D. Mumford and T.A. Ramanarayanan: J. of Electrochem. Soc. Vol. 150, no. 2 (2003) p. B76.

[19] G. Hultquist, C. Anghel and P. Szakalos. ISHOC (2005).

[20] R.F. Hochman: Proceedings of the 3th Int. Congress on Met. Corr, Moscow, USSR The Netherlands, 1966, Univ. Of Moscow Press (1969), p.119.

[21] C.H. Toh, P.R. Munroe and D.J. Young: 15th Int. Corr. Conf. (ICC), Granada, Sept. (2002).

[22] B. A. Baker and G. D. Smith: Int. Workshop on Metal Dusting, ANL, Argonne, Illinois Sept. 26-28, (2001).

[23] P. Szakálos, M. Lundberg and R. Pettersson, Material Science Forum, Volumes 461-464, Part 1, pp.561-570 (2004) (6th HTCPM, Les Embiez).

[24] P. Szakálos, M. Lundberg and R. Pettersson, Corr. Sci, accepted june (2005).

[25] J. Skarda: Conf. Industrial Combustion Thechnologies, Chicago, Illinois, USA, 29-30 Apr. 1986, American Society of Metals (1986), p.279.

[26] F.K. Naumann and F. Spies: Praktische Metallogr., 14-3 (1977), p.160.

[27] P. Kofstad, High temperature corrosion (Elsevier Applied Science, London and New York, 1988).