Recrystallization of Iron Aluminides


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Cast iron aluminides of three compositions were strongly deformed by hot extrusion and subsequently annealed. The texture development and kinetics of recrystallization were determined by local and global texture measurements. The deformation texture of Fe-10Al (A2 structure) is a <110>-fibre, Fe-35Al and Fe-50Al (B2 structure) show a <100>-<110> double fibre texture with <110> dominating Fe-35Al. The texture change with composition is due to a change in slip system. The deformed samples are partially dynamically recrystallized. The recrystallization components are aligned along the symmetry line <100>- <110> and towards <114> for Fe-10Al. For the other alloys the recrystallization texture is <111> with a tendency to <112>. The texture components do not change during static recrystallization. In general, the recrystallization texture is quite weak. The microstructure is very inhomogeneous ranging from deformed, strongly recovered to recrystallized areas. Beside primary recrystallization abnormal grain growth takes place. The heterogeneity of recrystallization makes it difficult to quantify the kinetics of recrystallization. The results are discussed with respect to the order of the alloys.



Materials Science Forum (Volumes 467-470)

Edited by:

B. Bacroix, J.H. Driver, R. Le Gall, Cl. Maurice, R. Penelle, H. Réglé and L. Tabourot




W. Skrotzki et al., "Recrystallization of Iron Aluminides", Materials Science Forum, Vols. 467-470, pp. 525-530, 2004

Online since:

October 2004




[1] C.G. McKamey, in: Physical Metallurgy and Processing of Intermetallic Compounds, eds.: N.S. Stoloff and V.K. Sikka (Chapman & Hall, New York 1996), p.351.

[2] S.C. Deevi, D.H. Sastry and V.K. Sikka, in: Structural Intermetallics 2001, eds.: K.J. Hemker, D.M. Dimiduk, H. Clemens, R. Darolia, H. Inui, J.M. Larsen, V.K. Sikka, M. Thomas and J.D. Whittenberger, (The Minerals, Metals & Materials Society, Warrandale 2001), p.111.

[3] M. Dahms: J. Appl. Cryst. 25 (1992), p.258.

[4] W. Skrotzki, R. Tamm and C. -G. Oertel: Mater. Sci. Forum Vols. 426-432 (2003), p.3593.

[5] P.S. Khadkikar, G.M. Michal and K. Vedula: Met. Trans. A21 (1990), p.279.

[6] J.J. Stout and M.A. Crimp: Mater. Sci. Eng. A152 (1992), p.335.

[7] V.E. Pirot, B. Verlinden, L. Delaey and E. Aernoudt: Rev. Met. A96 (1996), p.220.

[8] R. Baccino, K. Wolski, F. Thevenot, J. Le Coze and F. Moret: Ann. Chim. Sci. Mat. 22 (1997), p.423.

[9] S. Lenhard, F. Wagner and T. Grosdidier, in: Proc. ICOTOM 12, ed. J.A. Szpunar (NRC Research Press, Ottawa 1999), p.683.

[10] S. Lenhard: Ph.D. Thesis, Metz University (2001).

[11] E. Suzon, F. Wagner and T. Grosdidier: Mater. Sci. Forum Vols. 426-432 (2003), p.1667.

[12] E. Suzon: Ph.D. Thesis, Metz University (2004).