Study of Diffusion and Reaction Diffusion in the Fe-C-Nb System


Article Preview

Experiments of niobium diffusion at infinite dilution and Nb reaction-diffusion in pure iron and in ferrites with different amounts of carbon were performed, for comparison, in order to understand the influence of carbon on the diffusion process in the Nb-Fe system. A proportional decrease of the diffusion coefficient with the increasing amount of carbon was found. This effect seems to be stronger than in the self-diffusion analyzing the literature; moreover SIMS measurements in niobium- implanted samples show a redistribution of carbon during the first steps of the diffusion process. For those reasons, a stronger effect of carbon-niobium interaction over the carbon-vacancy interaction seems to be responsible for the decrease in the diffusion coefficient.



Edited by:

D. L. Beke, Z. Erdélyi and I. A. Szabó




R. A. Pérez et al., "Study of Diffusion and Reaction Diffusion in the Fe-C-Nb System", Defect and Diffusion Forum, Vol. 264, pp. 163-169, 2007

Online since:

April 2007




[1] M. Lübbehusen and H. Mehrer: Acta Metal. Matter 28 (1990) 283-292.

[2] K. Hirano and Y. Ijima: Deffect and Diffusion Forum 66-69 (1989) 1039-1058.

[3] R.A. Pérez, D.N. Torres, F. Dyment and M. Weissman: Defect and Diffusion Forum 237-340 (2005) 462-467.

[4] C. Domain, C.S. Becquart and J. Foct: Phys. Rev B: 69 (2004) 144112.

[5] T. Wabenblast and A.C. Damask J. Phys. Chem. Solids 23 (1962) 221.

[6] L. De Shepper, D. Segers, L. Dorikkens-Vanpraet, M. Dorikens, G. Knuyt, L.M. Stals and P. Moser, Phys Rev B 27 (1983) 5227-5269.

[7] Landolt-Börnstein: Diffusion in Solid Metals and Alloys. (Springer-Verlag Berlin Heidelberg 1990) Compiled by H. Mehrer. pp.125-128.

[8] E. Paul and L.J. Swartzemdriber: Bulletin of Alloy Phase Diagrams 7 (1986) 248-254.

[9] Chr. Herzig, J. Geise, S.V. Divinski: Z. Metallkde., 93, (2002) 1180-1187.

[10] Girifalco L.A. J Phys Chem Solids 1962; 23: 1171.

[11] Ruch L, Sain D.R., Yeh H.L., Girifalco L.A., J Phys Chem Solids 1976; 37: 649.

[12] J. Crangle and G.M. Goodman: Proc R Soc LA 321 (1971): p.477.

[13] R.A. Pérez and P. Gas, to be published.

[14] P. Hautojärvi, J. Johansson, A. Vehanen, J. Yli-Kauppila and P. Moser: Phys. Rev B: 25 (1982) 762-780.


[15] T. Takeyama and H. Takahashi Fundamental Aspects of Radiation Damage in Metals edited by M.T. Robinson and F.W. Young, Jr. (Energy Research and Development Administration, Oak Ridge, Tenn. 1976) p.1100.