Influence of Nb Stabilization on the Recovery and Recrystallization Kinetics of a Ferritic Stainless Steel: Consequences on Magnetic Losses

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Softening kinetics of two 17% chromium (Cr) stainless steel grades that differ in niobium (Nb) content are compared. In the experiments, we observed that a low Nb stabilization makes recrystallization nucleation much faster and prevents incomplete recrystallization. A qualitative interpretation, based on interaction with precipitates, is proposed and explains the main features of the softening kinetics as well as the microstructures obtained. For the Nb stabilized grade, magnetic losses were measured in the deformed state and after recrystallization. Above a specific magnetizing frequency, the deformed state led to smaller losses than the recrystallized state. These results are believed to be attributed to a grain size effect.

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Periodical:

Materials Science Forum (Volumes 558-559)

Edited by:

S.-J.L. Kang, M.Y. Huh, N.M. Hwang, H. Homma, K. Ushioda and Y. Ikuhara

Pages:

253-258

DOI:

10.4028/www.scientific.net/MSF.558-559.253

Citation:

N. Meyer et al., "Influence of Nb Stabilization on the Recovery and Recrystallization Kinetics of a Ferritic Stainless Steel: Consequences on Magnetic Losses", Materials Science Forum, Vols. 558-559, pp. 253-258, 2007

Online since:

October 2007

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$35.00

[1] K. Ara: IEEE Transactions on Magnetics Vol. 25 (1989), p.2617.

[2] M. Mantel, B. Baroux, D. Gex and P. Pedarre: Recrystallization '90, edited by T. Chandra, The Minerals, Metals & Materials Society (1990), p.345.

[3] O. Geoffroy, in: Techniques de l'Ingénieur, edited by T.I. Sciences et Techniques, volume D2080 (2006).

[4] M. Verdier, Y. Bréchet and P. Guyot: Acta Mater. Vol. 47 (1999), p.127.

[5] M. Rouby and P. Blanchard, in: Les aciers inoxydables, edited by P. Lacombe, EDP (1990).

[6] E. Rauch: HDR Thesis, INPG (1993).

[7] S.P. Ray and B.D. Sharma: Acta Metallurgica Vol. 16 (1968).

[8] H. Réglé: HDR Thesis Université Paris 13 (2005).

[9] J. Dunlop : PhD Thesis, INPG (2005).

[10] P. Bate and B. Hutchinson: Scripta Materialia Vol. 36 (1997), p. (1995).

[11] M.F. de Campos, T. Yonamine, M. Fukuhara, F.J.G. Landgraf, C.A. Achete and F. P. Missell: IEEE Transactions on Magnetics Vol. 42 (2006).

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